The ProCeas® and the LaserCEM® are based on the OFCEAS* measuring principle combined with a Low Pressure Sampling LPS (100 mbar absolute) developed and patented worldwide by AP2E (France), for the online analysis of several key gases in industrial, environmental and OH&S applications. It provides measurements with a very high spectral resolution in addition to an exclusive and powerful sampling method (no heated line nor treatment of samples) and an interference-free, fast and sensitive analysis, regardless of the matrix of the gas to be analysed.
References: EXXON (optimising combustion in boilers), Fives PILLARD (optimisation tool for the production and the adjustment of burners for boilers).
With the environmental constraints, Oil companies are looking for optimum energy and environmental efficiency of their burners. Combined cycles boilers optimisation requires accurate simultaneous online monitoring of O2 and CO to ensure both compliance with standards and process control efficiency. The ProCeas, used to track real time the residual rate of O2 (less than 3%), ensures optimal combustion process automation. The accuracy of the measurement is a financial matter: according to the thermal performance of the burner, even a reduction of 0.1% of oxygen in excess represents millions of dollars of savings in the annual consumption of fuel.
Reference: IBIDEN Power Station – Simultaneous SO2/SO3 monitoring at the catalyst outlet according to the oxygen content variation have been done with the ProCeas® analyser.
SO2/SO3: AP2E also intends to enhance the approach aimed at combining environmental compliance and process optimisation, even if this seems less obvious to understand at first sight. If today SO2 is correctly measured, this does not fully reflect the sulphur emissions from combustion units subject to this requirement. In the presence of oxygen, SO2 does in effect form sulphur trioxide (SO3), a gas that is much more corrosive than SO2.
Other chemical phenomena occur, particularly in denitrification (DeNOx), which in the presence of ammonia may lead both to an over-consumption of ammonia and to filter blockages. Therefore, not measuring SO3 entails the under estimation of sulphur emissions, and also additional maintenance costs and over-consumption of reagents. To have continuous and precise knowledge of the SO2 / SO3 couple enables the operator to choose the controlling conditions for limiting the formation of SO3 and its indirect costs.
References: SP Technical Research Institute of Sweden, Rhodia (France). VEOLIA for its Centre de Recherche Energie Environnement Déchet (CREED, Centre for research on energy, environment, and waste).
The processing of gases from biomass (biogas, bio-methane) remains a key step in industrial processes for producing various types of bio-energy, a manufacturing process that requires optimizing.
It is therefore imperative to have the ability to calculate the calorific value of these new gases and to be able to quantify the impurities present there, in order to reduce the risk of damage to facilities, to react quickly in case of malfunction, and to certify the quality of finished products. AP2E has installed several equipment units within the facilities of various players of the world of biogas around the world. The purpose is to analyse the CH4 and CO2 content, as well as the residual concentration of H2S. This is a major impurity which transforms into sulphuric acid in the presence of some moisture. It is a very corrosive acid; consequently it is destructive for the facilities and the engines that burn biogas or bio methane.
The ability to analyse in the same multiplexing equipment the H2S content (which varies according to the time of day) of the “raw biogas” at the exit of the casing serves to determine the use of this biogas and assess its composition and quality. Other compounds may also be monitored by adding specific laser sources, such as the water content, in order to control the efficiency of the condenser. AP2E is also currently studying the analysis of siloxane, another sore point for energy recovery.
Using a continuous analyser as a means of industrial control and economic optimization of production units is for the control of biogas quality. During the combined cycles of biogas generation, the absence of H2S is crucial. It is a major impurity and a source of engine breakage. However, conventional means of analysis have trouble distinguishing CH4 from H2S. Therefore, operators are forced to adopt an excessively prudent approach in the treatment stage with active carbon: it is changed even before it is totally saturated. With a continuous, accurate, and reliable analysis of the level of H2S in the exit of the adsorption bed, we can instead use it until its saturation point and reduce overall costs.
Tests conducted on a site with a valuation of 1 MW showed that the amortization of the analyser could be performed based on this single criterion of active coal consumption in less than a year. Indeed the cost of a monthly activated carbon charge is equivalent to AUD $65,000.
References: In 2010, AP2E won an important contract with the DCNS for air quality control equipment for the confined interiors of submarines (on-board crew safety).
In April 2015, European regulations included formaldehyde as a proven carcinogenic product (CMR). In 2014, the ProCeas was certified approved method by EXERA (measurement, control, and automation equipment) and the LNE (National laboratory of metrology and testing).
AP2E is already working in the confined air field (submarines) and is interested in the building sector. This new classification impacts devices monitoring the exposure to workers or to the public of formaldehyde, Freon, Ethanol… present in the indoor air of industrial sites or sites hosting the public. The ProCeas® Formaldehyde continuously measures these changes with a minimum 10 ppm threshold (maximum 1%).
The drying field is another good example of application where energy efficiency has to be kept in mind, especially when processing food powders. Water monitoring is useful for avoiding excessive energy consumption (adjust dryer load to obtain minimise the residual H2O content). Online monitoring of carbon monoxide (CO) answers safety concerns. When food powders are dehydrated, the conditions may be such that CO is generated in the dehydrator. Once conditions for generating CO are present, CO tends to increase its concentration very quickly. To keep the CO below potentially dangerous level, it is necessary to detect the first signs of CO which appear above the levels already present in the atmosphere. The ProCeas is actually in operation within ten drying towers in dry food production facilities and has been chosen as the most reliable monitoring equipment by companies leading food processing industry.
The automobile engines sector also remains a major target. With the arrival of the new EURO VI standards since September 2014, manufacturers have been forced to measure many pollutants (NO, NO2, N2O, NH3, CO2, CH4, and ethanol).
Successful testing with ProCeas® was conducted around the world:
– NH3 at Renault and VOLVO (France)
– N2O at Volkswagen (Germany)
– NH3 at General Motors (USA)
– NH3, N2O, NO, NO2 at Sensor Inc. (USA)
In the USA with Sensors Inc. – (www.sensors-inc.com): in May 2012, AP2E signed a contract for supplying ProCeas® analysers for the real-time control of gas emissions of engine test benches in the automotive industry. Sensors Inc. is the leading American manufacturer of real-time testing equipment for gas emissions in the transportation industry. The new range of measuring instruments is marketed in the US under the name of SEMTECH LASAR and it consists of four modules (NH3, N2O, NO, and NO2), each capable of analysing three gases simultaneously.
To be used in the best conditions, so that it limits damage and maintenance of equipment, natural gas must be rid of impurities, especially hydrogen sulphide (H2S), which is very corrosive, and all traces of moisture. Current filtration systems run against, among other things, the problem of measuring residual traces of these impurities because no reliable continuous analysis system was available so far. Today the main players in the “Oil & Gas” market deem the ProCeas® as the most efficient natural gas analyser for continuously and simultaneously measuring traces of H2S (LoD under 50 ppb) and H2O (under 50 ppm), without interference, without any dependence vis-à-vis the constitution of the gas, and with response times under a few seconds
The ProCeas® is used by pure gases manufacturers to control the purity of the gas along production line (N2, H2, O2…).
References: Total, CEA Grenoble, IFP (French Petroleum Institute), GDF Suez, VEOLIA (CREED), Arkema
H2O, CO, CO2, and H2 rates
Praxair uses the ProCeas® as an online analyser of H2O, CO, CO2, and H2 rates, in a process for producing syngas from the gasification of coal, oil residue, pet coke, and biomass. This syngas is then used either as a source of energy in a heat and electricity combined cycle process or in a Fischer Tropsch process for producing second-generation bio-fuel. This process requires that the residual H2S generated by gasification have a value of less than 1 ppm to avoid the destruction of the polymerization catalysts.
CO, CO2, H2O, CH4, H2S, NH3 and H2
Midrex is a steel manufacturer that uses a gasification process similar to Praxair’s in order to cogenerate the electricity and heat needed in the manufacture of its steel. AP2E delivered to Midrex complete solutions that have enabled it on the one hand to measure the calorific value of these synthetic gases (by measuring CO, CO2, H2O, CH4, and H2) and also the presence of impurities such as H2S and NH3.
H2, H2O and Cl2
Today, the ProCeas® provides what no other infra-red laser technique could: the direct measurement of hydrogen (H2) and water (H2O) in chlorine (Cl2) without reagents or discharges, and interference-free. The ProCeas® performs measurements with a very high spectral resolution of very low concentrations (under a few ppm), with response times under a few seconds. This analyser also provides a control of the drying (H2O) in a chemical process at Arkema.
*Optical Feedback Cavity Enhanced Absorption Spectroscopy: technology developed and patented by the University Joseph Fourier (France), coupled to a Low Pressure Sampling(100 mbar absolute) developed and patented worldwide by AP2E, for the on-line analysis of different gases. By the end of 2010, after two years of R & D studies, the AP2E ProCeas®was the award recipient of the USA “R & D 100” which rewards the 100 most innovative global technologies of the year.
Syngas monitoring
/in Applications, Biogas, Continuous Emissions Monitoring Systems, energy, Portable Analyser, Process Monitoring, renewable /by aymericPurpose of gas monitoring in DRI plant
The use of process gas online monitoring systems at locations such blast furnace gas outlet, converter off gas exhaust and coking gas outlet is very reasonable in order to analyse the fuel gases composition by measuring the concentration of CO, CO2, O2, N2, CH4, and H2. There from the calorific value BTU and the Wobbe Index WI can be accurately calculated. Modern steel plants uses dedicated stationary online monitoring system to monitor the primary constituents of Direct Reduction Iron process gases essential to have a full understanding of the process status and efficiency.
Monitoring locations
The number of monitoring points can vary depending of the degree of automation and optimisation desired by the plant operators as well as the type, quality and stability of the combustible used.
Monitoring locations in Syngas Plant often include
• Acetylene from calcium carbide
• Fire hazard originating from magnesium
Insitu dust analyser.
Insitu dust analyser.
Insitu dust analyser.
(*) Sampling method and measuring principle to be selected based on the exact application requirements and specifications.
Syngas online monitoring systems
The use of advanced online monitoring systems installed in the heart of syngas processes usually requires integration into air conditioned analyser rooms or shelters to preserve the instruments from harsh plant conditions and corrosive atmospheres. The installation in an area protected from the weather also secures the data/instrument availability by providing permanent access to the analysers – if attendance is required for maintenance or diagnosis.
Systems certified for installation in explosive area (ATEX) may be required in some cases.
Reliable, accurate and application customised online monitoring systems are valuable in DRI and other syngas plants as they allow determining the quality parameters of blast furnace, coke and natural gas essential to process optimisation.
AquaGas Pty Ltd offers a broad range of portable and stationary monitoring systems specifically designed to handle syngas online monitoring requirements.
Our analysers and systems provide plant operator with application specific key features:
Monitoring solutions tailored to the needs of syngas plants
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
ATEX Syngas Monitoring Systems
Process gas online monitoring
Environmental Data acquisition and reporting software
Water Quality Monitoring Systems
Indoor air quality
/in Air Quality, AP2e, area monitors, Formaldehyde, gas detection, Indoor air quality, low pressure sampling LPS, Multipoint Monitoring, on-board analysers, online analyser, online monitoring, Ozone, Process Monitoring /by aymericAir Quality in Submarines
The ProCeas® NAV
The ProCeas® NAV is designed for online monitoring of CO2, CO, Freon, H2S, H2, O2, Formaldehyde (…) in nuclear and conventional submarines. The ProCeas® NAV uses the OFCEAS method commercialized by Ap2e of France.
The OFCEAS system uses a high-finesse optical cavity to provide path lengths of tens of kilometres. Moreover the OFCEAS technology can also, in certain configurations, take advantage of broadband light sources to provide multi-component analysis, while offering improved sensitivity when compared with shorter path-length methods, such as Tunable Diode Laser absorption spectroscopy (TDLAS).
The ProCeas® NAV analyser has been designed to endure large temperature variations, high vibrations and englobes all criteria required by the military environment to assure long-term crew member health in a confined environment.
Some of the gases and measuring ranges available on the ProCeas® NAV are:
Carbon Monoxide CO: 0-1000 ppm – Lower Detection Limit: 1 ppm
Carbon Dioxyde CO2: 0-5% – Lower Detection Limit: 0.01 %
Hydrogen Sulfide H2S: 0-10 ppm – Lower Detection Limit: 0.1 ppm
Freon; R134a and R404: 0-1000 ppm – Lower Detection Limit: 2 ppm
Ethanol C3H6O 0-2000 ppm – Lower Detection Limit: 4 ppm
General characteristics
Response time < 10 sec
No Zero drift and no Span drift – No daily calibration required – No nitrogen, zero air, purge or other carrier gas.
Weight 15 to 20 kg
Dimensions 480 x 240 x 150 cm
Formaldehyde in Indoor Air
ProCeas® Formaldehyde at HUTCHINSON
As per the international OH&S regulations on Formaldehyde, Hutchinson, subsidiary of TOTAL, evaluated several technologies to implement continuous real-time monitoring of Formaldehyde at their Plant facilities.
The ProCeas® has been selected by Hutchinson as the technology the most suited to their monitoring needs in terms of response time, accuracy and flexibility around the integration within the mainstream of their installation.
Hutchinson uses the ProCeas® to measure various level of Formaldehyde in the air at 3 separated sampling locations: laboratory, offices & entrance hall.
ProCeas Key features
Example of performances for the Formaldehyde
Measuring range: 0-10 ppm (up to 1%)
Lower detection limit: 1 ppb – (10 ppm at 1%)
Response time 2s
No Zero drift and no Span drift – No daily calibration required – No nitrogen, zero air, purge or other carrier gas.
Area Monitors for Sterilant Gas
Hazards of sterilant gases
Since sterilant gases are selected to destroy a wide range of biological life forms, any gas which is suitable for sterilisation will present a hazard to personnel exposed to it. The NIOSH Immediately Dangerous to Life and Health values (IDLH) for the three sterilant gases are 800 ppm, 75 ppm and 5 ppm for ethylene oxide, hydrogen peroxide and ozone respectively.
For comparison, the IDLH of cyanide gas (hydrogen cyanide) is 50 ppm. Thus exposure to even low levels of sterilant gas should not be treated casually and most facilities go to great lengths to adequately protect their employees. In addition sterilizers (as with any mechanical device) can and sometimes do fail and leaks have been reported. Continuous gas monitors are used as part of an overall safety program to provide a prompt alert to nearby workers in the event that there is a leak of the sterilant gas.
Monitoring Sterilant
The monitor alarms are typically set to warn if the concentrations exceed the OSHA permissible exposure limits (PELs), 1.0 ppm for ethylene oxide and 1.0 and 0.1 ppm for OH&S and ozone respectively. The PELs are calculated as 8 hour time weighted average values.
In addition to providing continuous monitoring, the better gas monitors include a computer based data acquisition system provides automatic data logging to assist with compliance with OSHA’s regulations and impending alarms that allow users to rectify problems before they become a hazard.
There are several technologies that are commonly used for the detection of sterilant gases, the main three being electrochemical, gas chromatography and metal oxide semiconductor. All three technologies are suitable for ethylene oxide, but only electrochemical sensors are used for hydrogen peroxide and ozone detection.
For ethylene oxide, metal oxide electrochemical sensors provide a low cost, long life detector offer very good sensitivity, fast alarm response times and small size. ChemDAQ gas monitor manufacturers mainly use electrochemical sensors for toxic gases because of their many advantages.
Electrochemical sensors have traditionally suffered from a cross sensitivity problems with other vapours (alcohols are especially troublesome in health care). Cross sensitivity results in false alarms, unnecessary evacuations and eventually a loss of confidence in the gas monitoring system.
ChemDAQ has developed a proprietary chemical filter that allows the ethylene oxide to pass through but removes most common interferent gases and vapours (including carbon monoxide, ethanol and IPA). The use of this filter allow the ethylene oxide to be detected with all the advantages that electrochemical sensors have to offer, but without the problems of cross sensitivity.
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
Continuous Emissions Monitoring Systems
Process gas online monitoring
Combustion analysers
Water Quality Monitoring Systems
CEMS and process gas analyser
/in Air Quality, anaerobic digestion/bacteria, Applications, Biogas, CEMS, Continuous Emissions Monitoring Systems, Direct Extractive, energy, fermentation process, Gas coolers, landfill, Methanation, Multipoint Monitoring, NDIR, News, Portable Analyser, Power Station, Process Monitoring, processed biomethane, raw biogas, renewable, Sampling system, stack emissions, waste incinerator, waste-to-energy /by aymericA new approach to continuous gas monitoring
The Mamos is a high quality stationary monitoring system for the measurement of up to 6 gases as well as gas temperature, ambiant and differential pressures (Gas Flow) in a large field of applications.
Designed to optimise performance/price ratio, small in size and yet very skilful analyser, the Mamos is the field proven alternative for large, intricate Continuous Emissions Monitoring Systems, as it does not fall behind them concerning functionality, abilities, reliability and is far ahead in terms of expenses.
Online monitoring made easy
Fully automated and packed with exclusive features, the Mamos concept enlarges monitoring possibilities and respond to the today’s demands in terms of accuracy, reliability and flexibility. Each analyser is supplied with its own sampling system. The entire system is mounted on a wall mount plate and designed for installation in industrial settings and rough environment. It has a modular construction, and offer a large panel of add-ons to match site specific application requirements. The Mamos minimises the installation and ongoing operation cost until now required to fulfil your monitoring needs.
Multigas
Depending of the gas matrix and components to be analysed, the Mamos can be fitted with up to 6 different sensors. The combination of technologies (NDIR, TCD, PID, Electrochemical) and the addition of separate gas channels into the same instrument empower flexibility in multigas applications. A unique feature is to allocate a gas channel to sensible sensors. Its design ensures the cells have a limited exposure to gases and therefore extends considerably their respective life-time.
Process gas and emissions monitoring in combustion plants, boilers, syngas, biogas, waste recycling facilities and associated filtration systems are typical applications for multiple gas channels configuration.
In Biogas, the primary gas channel holds the CO2, CH4, O2 sensors while an additional separate gas channel is allocated to sensible Electrochemical sensors, H2S for example. The two NDIR gas channels can then be used for CO and VOCs.
The Mamos offers multiple sensor and method configurations. Here are the measuring parameter for the most common gases. For other gases or different measuring ranges (MR), please consult us.
Oxygen
0.01%
CTM-030
Oxygen
0.01%
CTM-030
Oxygen
0.01%
CTM-030
Carbon Monoxide
1ppm
CTM-030
Carbon Monoxide
1ppm
CTM-030
Carbon Monoxide
1ppm
CTM-030
Carbon Monoxide
1ppm
CTM-030
Carbon Monoxide
0.001%
CTM-030
Carbon Monoxide
Non Dispersive Infra Red
0.01%
Method 10
Carbon Monoxide
Non Dispersive Infra Red
0.01%
Method 10
Carbon Monoxide
Non Dispersive Infra Red
0.01%
Method 10
Carbon Monoxide
Non Dispersive Infra Red
0.1%
Method 10
Carbon Dioxide
Non Dispersive Infra Red
0.01%
OTM-13
Carbon Dioxide
Non Dispersive Infra Red
0.01%
OTM-13
Carbon Dioxide
Non Dispersive Infra Red
0.01%
OTM-13
Carbon Dioxide
Non Dispersive Infra Red
0.01%
OTM-13
Carbon Dioxide
Non Dispersive Infra Red
0.1%
OTM-13
Total Hydrocarbons
Non Dispersive Infra Red
0.01%
Total Hydrocarbons
Non Dispersive Infra Red
0.01%
Total Hydrocarbons
Non Dispersive Infra Red
0.01%
Total Hydrocarbons
Non Dispersive Infra Red
0.01%
Total Hydrocarbons
Non Dispersive Infra Red
0.01%
Total Hydrocarbons
Non Dispersive Infra Red
0.1%
Nitric Oxide
1ppm
Nitric Oxide
1ppm
Nitrogen Dioxide
1ppm
Nitrogen Dioxide
1ppm
Sulphur Dioxide
1ppm
Sulphur Dioxide
1ppm
Hydrogen sulfide
1ppm
Hydrogen sulfide
1ppm
Hydrogen
1ppm
Hydrogen
1ppm
Hydrogen
Thermal Conductivity Detector
0.1%
Hydrogen
Thermal Conductivity Detector
0.1%
Hydrogen
Thermal Conductivity Detector
0.1%
Hydrogen
Thermal Conductivity Detector
0.1%
Nitrous Oxide
Non Dispersive Infra Red
1ppm
Nitrous Oxide
Non Dispersive Infra Red
1ppm
Fluoroform (Refrigerant R23)
Non Dispersive Infra Red
0.01%
Chlorine
1ppm
Volatile Organic Compounds
Photo Ionization Detector
1ppm
Volatile Organic Compounds
Photo Ionization Detector
1ppm
Pleasant interface
Its powerful and pleasant PC interface provides operators and system integrators with a broad range of settings to adjust many aspects of the measurement tasks such as automated sampling, calibration, purge sequences, analogue outputs behaviour, data presentations…
For large sites with complex monitoring requirements, the LAN and ModBus interfaces allow implementing in an efficient way large instruments networks with master/slave configurations and user settable monitoring functions.
Optimised integration
This compact system is delivered ready for installation. Thanks to its small size, the system is easy to locate, install and set-up. The routing of the cables and tubes to the instrument is simplified with all gas and electrical connections grouped onto a single plate.
Advanced Features
Gas temperature
0.1°C
Gas temperature
0.1°C
Boiler intake air temperature
0.1°C
Differential Pressure
1Pa (0.01hPa)
Gas velocity
0.1m/s
Excess air number
0.01
Stack loss
0.1%
Combustion Efficiency
0.1%
Versatile in use
The sampling system configuration can be adapted to specific monitoring needs such as multipoint monitoring, redundancy, continuous or time set measuring cycles… When sampling from wet and hot gas, moisture content, condensates and salts are continuously removed by the use of one or several gas dryer(s) (Peltier or Nafion) equipped with built-in safety filter, condensate trap and safety inline particulate filters.
Wether it uses the built-in sampling pump or the pressure from the source, the analyser is designed to work with overpressure. Single gas channel configuration can handle overpressure up 1.8 bar.
MD3 for high moisture content – Waste incinerator, Syngas, Coal Power Stations, Chemical and refinery facilities, (…)
MD2 for low and medium moisture content – Biogas, landfill, odour filtration system, LNG, (…)
Three configurations
Compact – Short-extractive CEMS – Analyser with gas dryer on a common mounting plate, all installed near the measurement place.
dimensions (H x W) | material | weight
Split /1 dryer – Cold Dry Extractive CEMS – Analyser and gas dryer are installed on separate mounting plates, each equipped with its own power supply module. The gas dryer is installed near the sampling point therefore the analyser can be located away from the source. Once free from water vapour, the sample can be conveyed on long distances without the need for heated lines.
Split/2 dryers – Cold Dry Extractive CEMS – Compact configuration with an additional gas dryer installed on separate mounting plates, each equipped with its own power supply module. Two dryers in serial for high drying performances suitable for Traces monitoring in wet sample.
Twin Split – Cold Dry Multipoint CEMS – This version is based on the Twin Split/1 dryer configuration, but uses two MD3 dryer with their own power supply added on separate mounting plates enabling measurements from two different locations (each dryer is installed near the sampling point). User programmable sampling sequences.
Madur, state-of-the-art monitoring solutions
1300 850 862
Call us with your application details handy to organise a CEMS demo at your facilities !
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
Continuous Emissions Monitoring Systems
Process gas online monitoring
Combustion analysers
Water Quality Monitoring Systems
Suspended oil online monitoring
/in Applications, energy, hydrocarbons, Methanation, online analyser, online monitoring, Power Station, Process Monitoring, SERES, suspended oil, wastewater, water discharge, Water Quality /by aymericThe benefits of accurate suspended oil (oil in water) online monitoring are countless with regards to process and wastewater management, especially in the oil and gas industry. Continuous hydrocarbons monitoring enables complete environmental compliance, detailed process optimisation and reduced operating costs often by the use of a single instrument.
Discharge management
Oil platforms, refineries and Tank farms generate produced water which requires close management. For every country in Oceania, there are regulations setting limits on the amount of hydrocarbons than can be disposed of overboard and a range of different lab techniques that can be used for reporting this amount. The OPAL and PAUTBAC II from SERES IR based analysers can provide continuous measurement of the oil concentrations in the discharge water from oil and gas processing and storage facilities.
Process optimisation
The OPAL and PAUTBAC II from SERES are respectively side stream analyser and oil tank de-watering systems based on IR light scattering. They not only can provide you with extremely accurate monitoring, but also sense for changes in the size of oil droplets and therefore in process conditions. Using the built in IR detector, the OPAL and PAUTBAC II analysers enable early detection of oil traces in all type of water, ensuring fast overview of the process conditions.
As the volume of your discharge water increases, you need a system that will meet your changing demands, work reliably and with minimal operator input required. Having provided hundreds of online monitoring systems worldwide, SERES is the best positioned to assist you along with your water management plan.
Oil Pollution Alarm
Every platform, refineries, industrial process (…) has to recover as much oil as possible, as efficiently as possible. In order to make improvements you need to understand how the current system is working. SERES Environnement manufactures the OPAL (IMO* certified) allowing real-time measurement of oil concentrations at the inlet and outlet of any separator, providing continuous on-line information about the effectiveness of your separators. The OPAL can also trigger a divert valve to route the produced water through a sand filter.
The OPAL is the last generation of detector designed for online and Real-time suspended Hydrocarbons monitoring. It uses Infra-Red scattering to enables early detection of oil in any type of water. Reagent’s free, the OPAL represents the most cost effective solution and matches a large range of application requirements.
* IMO International Maritime Organisation
PAUTBAC II
The PAUTBAC II is the best suited system to automate water drainage from oil storage tank. With its capacitive probe, it is a flexible, economical and reliable system capable to handle the crucial but time consuming task of oil tank dewatering without the need for human attendance. PAUTBAC II is designed to be install online and is a fully automatic system with adjustable threshold form 5 to 25% and no tank modifications required
A Teflon coated capacitive probe is inserted in an explosion proof circulation chamber mounted in the tank draining pipe work. The probe measures the dielectric constant to detect the interface between oil and water. The control unit processes the probe signal to control the tank purge valve operation.
key facts about automatic dewatering systems
PAUTBAC advantages
AT THE HEART OF INNOVATION
SERES environnement is continually implicated in the process of technological innovation. “We constantly re-invest in research and development in order to provide our clients with the most advanced technologies. For SERES, the notion of change is a permanent challenge. We work in partnership and collaboration with French and foreign research centres (such as the CNRS – the French National Centre for Scientific Research), Engineering Colleges and Universities.” SERES environnement makes 60% of its turnover on the export market in more than 35 countries with references in the Oil & Gas, Water treatment, Cement and Glass industry, Energy and large manufacturing companies…
Universal gas sampling system
/in Applications, Biogas, CEMS, Continuous Emissions Monitoring Systems, Direct Extractive, energy, Gas coolers, landfill, News, Process Monitoring, renewable, Sampling system, stack emissions, waste incinerator, waste-to-energy /by aymericSampling is a key factor to ensure representative analysis and essential to preserve the good status of your monitoring system. AquaGas Monitoring Systems introduces Ankersmid Sampling BVBA (Belgium) stationary sampling equipment designed for Continuous Emission Monitoring (CEMS) and process online analysis.
AquaGas solutions are available as system components for integration into third party systems or as complete turn-key systems. Our systems combine the best technologies available to extract, transfer, and condition samples from stack or crucial process locations prior to analysis.
Ankersmid Sampling Patented design offers a wide selection of modular options and combinations essential to optimise sampling performances and secure the availability rate of CEMS and process monitoring equipment.
Our adaptative product range is versatile and suits a large variety of applications including:
Heated Gas Sample Probes
Heated Lines
Gas Conditioners
Gas Sampling Pumps
Speciality Filters
Universal
CEMS integration made easy
Performant
Field proven, high quality, durable Ankersmid Sampling BVBA patented designs
Modular
Comprehensive range of gas sampling equipment from one source
Efficient
Easy to install, maintain and operate
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
Continuous Emissions Monitoring Systems
Process gas online monitoring
Combustion analysers
Water Quality Monitoring Systems
Continuous IR laser spectroscopy
/in Biogas, CEMS, Continuous Emissions Monitoring Systems, Direct Extractive, fermentation process, low pressure sampling LPS, Methanation, Multipoint Monitoring, Power Station, ProCeas Biogas, Process Monitoring, processed biomethane, raw biogas, renewable, waste incinerator, waste-to-energy /by aymericApplications and References
The ProCeas® and the LaserCEM® are based on the OFCEAS* measuring principle combined with a Low Pressure Sampling LPS (100 mbar absolute) developed and patented worldwide by AP2E (France), for the online analysis of several key gases in industrial, environmental and OH&S applications. It provides measurements with a very high spectral resolution in addition to an exclusive and powerful sampling method (no heated line nor treatment of samples) and an interference-free, fast and sensitive analysis, regardless of the matrix of the gas to be analysed.
Combustion cycle in refineries
References: EXXON (optimising combustion in boilers), Fives PILLARD (optimisation tool for the production and the adjustment of burners for boilers).
With the environmental constraints, Oil companies are looking for optimum energy and environmental efficiency of their burners. Combined cycles boilers optimisation requires accurate simultaneous online monitoring of O2 and CO to ensure both compliance with standards and process control efficiency. The ProCeas, used to track real time the residual rate of O2 (less than 3%), ensures optimal combustion process automation. The accuracy of the measurement is a financial matter: according to the thermal performance of the burner, even a reduction of 0.1% of oxygen in excess represents millions of dollars of savings in the annual consumption of fuel.
CEMS in coal fired power station
Reference: IBIDEN Power Station – Simultaneous SO2/SO3 monitoring at the catalyst outlet according to the oxygen content variation have been done with the ProCeas® analyser.
SO2/SO3: AP2E also intends to enhance the approach aimed at combining environmental compliance and process optimisation, even if this seems less obvious to understand at first sight. If today SO2 is correctly measured, this does not fully reflect the sulphur emissions from combustion units subject to this requirement. In the presence of oxygen, SO2 does in effect form sulphur trioxide (SO3), a gas that is much more corrosive than SO2.
Other chemical phenomena occur, particularly in denitrification (DeNOx), which in the presence of ammonia may lead both to an over-consumption of ammonia and to filter blockages. Therefore, not measuring SO3 entails the under estimation of sulphur emissions, and also additional maintenance costs and over-consumption of reagents. To have continuous and precise knowledge of the SO2 / SO3 couple enables the operator to choose the controlling conditions for limiting the formation of SO3 and its indirect costs.
Biogas
References: SP Technical Research Institute of Sweden, Rhodia (France). VEOLIA for its Centre de Recherche Energie Environnement Déchet (CREED, Centre for research on energy, environment, and waste).
The processing of gases from biomass (biogas, bio-methane) remains a key step in industrial processes for producing various types of bio-energy, a manufacturing process that requires optimizing.
It is therefore imperative to have the ability to calculate the calorific value of these new gases and to be able to quantify the impurities present there, in order to reduce the risk of damage to facilities, to react quickly in case of malfunction, and to certify the quality of finished products. AP2E has installed several equipment units within the facilities of various players of the world of biogas around the world. The purpose is to analyse the CH4 and CO2 content, as well as the residual concentration of H2S. This is a major impurity which transforms into sulphuric acid in the presence of some moisture. It is a very corrosive acid; consequently it is destructive for the facilities and the engines that burn biogas or bio methane.
The ability to analyse in the same multiplexing equipment the H2S content (which varies according to the time of day) of the “raw biogas” at the exit of the casing serves to determine the use of this biogas and assess its composition and quality. Other compounds may also be monitored by adding specific laser sources, such as the water content, in order to control the efficiency of the condenser. AP2E is also currently studying the analysis of siloxane, another sore point for energy recovery.
Using a continuous analyser as a means of industrial control and economic optimization of production units is for the control of biogas quality. During the combined cycles of biogas generation, the absence of H2S is crucial. It is a major impurity and a source of engine breakage. However, conventional means of analysis have trouble distinguishing CH4 from H2S. Therefore, operators are forced to adopt an excessively prudent approach in the treatment stage with active carbon: it is changed even before it is totally saturated. With a continuous, accurate, and reliable analysis of the level of H2S in the exit of the adsorption bed, we can instead use it until its saturation point and reduce overall costs.
Tests conducted on a site with a valuation of 1 MW showed that the amortization of the analyser could be performed based on this single criterion of active coal consumption in less than a year. Indeed the cost of a monthly activated carbon charge is equivalent to AUD $65,000.
Indoor air quality
References: In 2010, AP2E won an important contract with the DCNS for air quality control equipment for the confined interiors of submarines (on-board crew safety).
In April 2015, European regulations included formaldehyde as a proven carcinogenic product (CMR). In 2014, the ProCeas was certified approved method by EXERA (measurement, control, and automation equipment) and the LNE (National laboratory of metrology and testing).
AP2E is already working in the confined air field (submarines) and is interested in the building sector. This new classification impacts devices monitoring the exposure to workers or to the public of formaldehyde, Freon, Ethanol… present in the indoor air of industrial sites or sites hosting the public. The ProCeas® Formaldehyde continuously measures these changes with a minimum 10 ppm threshold (maximum 1%).
Food processing industry
The drying field is another good example of application where energy efficiency has to be kept in mind, especially when processing food powders. Water monitoring is useful for avoiding excessive energy consumption (adjust dryer load to obtain minimise the residual H2O content). Online monitoring of carbon monoxide (CO) answers safety concerns. When food powders are dehydrated, the conditions may be such that CO is generated in the dehydrator. Once conditions for generating CO are present, CO tends to increase its concentration very quickly. To keep the CO below potentially dangerous level, it is necessary to detect the first signs of CO which appear above the levels already present in the atmosphere. The ProCeas is actually in operation within ten drying towers in dry food production facilities and has been chosen as the most reliable monitoring equipment by companies leading food processing industry.
Engine emissions testing
The automobile engines sector also remains a major target. With the arrival of the new EURO VI standards since September 2014, manufacturers have been forced to measure many pollutants (NO, NO2, N2O, NH3, CO2, CH4, and ethanol).
Successful testing with ProCeas® was conducted around the world:
– NH3 at Renault and VOLVO (France)
– N2O at Volkswagen (Germany)
– NH3 at General Motors (USA)
– NH3, N2O, NO, NO2 at Sensor Inc. (USA)
In the USA with Sensors Inc. – (www.sensors-inc.com): in May 2012, AP2E signed a contract for supplying ProCeas® analysers for the real-time control of gas emissions of engine test benches in the automotive industry. Sensors Inc. is the leading American manufacturer of real-time testing equipment for gas emissions in the transportation industry. The new range of measuring instruments is marketed in the US under the name of SEMTECH LASAR and it consists of four modules (NH3, N2O, NO, and NO2), each capable of analysing three gases simultaneously.
Natural gas
To be used in the best conditions, so that it limits damage and maintenance of equipment, natural gas must be rid of impurities, especially hydrogen sulphide (H2S), which is very corrosive, and all traces of moisture. Current filtration systems run against, among other things, the problem of measuring residual traces of these impurities because no reliable continuous analysis system was available so far. Today the main players in the “Oil & Gas” market deem the ProCeas® as the most efficient natural gas analyser for continuously and simultaneously measuring traces of H2S (LoD under 50 ppb) and H2O (under 50 ppm), without interference, without any dependence vis-à-vis the constitution of the gas, and with response times under a few seconds
Pure Gas
The ProCeas® is used by pure gases manufacturers to control the purity of the gas along production line (N2, H2, O2…).
Syngas
References: Total, CEA Grenoble, IFP (French Petroleum Institute), GDF Suez, VEOLIA (CREED), Arkema
H2O, CO, CO2, and H2 rates
Praxair uses the ProCeas® as an online analyser of H2O, CO, CO2, and H2 rates, in a process for producing syngas from the gasification of coal, oil residue, pet coke, and biomass. This syngas is then used either as a source of energy in a heat and electricity combined cycle process or in a Fischer Tropsch process for producing second-generation bio-fuel. This process requires that the residual H2S generated by gasification have a value of less than 1 ppm to avoid the destruction of the polymerization catalysts.
CO, CO2, H2O, CH4, H2S, NH3 and H2
Midrex is a steel manufacturer that uses a gasification process similar to Praxair’s in order to cogenerate the electricity and heat needed in the manufacture of its steel. AP2E delivered to Midrex complete solutions that have enabled it on the one hand to measure the calorific value of these synthetic gases (by measuring CO, CO2, H2O, CH4, and H2) and also the presence of impurities such as H2S and NH3.
H2, H2O and Cl2
Today, the ProCeas® provides what no other infra-red laser technique could: the direct measurement of hydrogen (H2) and water (H2O) in chlorine (Cl2) without reagents or discharges, and interference-free. The ProCeas® performs measurements with a very high spectral resolution of very low concentrations (under a few ppm), with response times under a few seconds. This analyser also provides a control of the drying (H2O) in a chemical process at Arkema.
*Optical Feedback Cavity Enhanced Absorption Spectroscopy: technology developed and patented by the University Joseph Fourier (France), coupled to a Low Pressure Sampling(100 mbar absolute) developed and patented worldwide by AP2E, for the on-line analysis of different gases. By the end of 2010, after two years of R & D studies, the AP2E ProCeas®was the award recipient of the USA “R & D 100” which rewards the 100 most innovative global technologies of the year.
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
Continuous Emissions Monitoring Systems
Process gas online monitoring
Combustion analysers
Water Quality Monitoring Systems
OFCEAS & Low Pressure Sampling
/in Air Quality, AP2e, Applications, Biogas, CEMS, Continuous Emissions Monitoring Systems, Direct Extractive, landfill, low pressure sampling LPS, Multipoint Monitoring, Power Station, ProCeas Biogas, Process Monitoring, renewable, waste incinerator, waste-to-energy /by aymericContinuous Emissions Monitoring and Process Control
Starting in 2012, AP2E launched the industrialisation of the ProCeas® and LaserCEM® product range, the continuous and multigas analysers using OFCEAS* patented laser spectrometry. This analyser range is based on several innovations, providing very high performance in terms of response time (less than a few seconds) and great accuracy of the analyses (wide dynamic range from ppb to %):
OFCEAS, CONTINUOUS INFRA-RED LASER SPECTROSCOPY TECHNOLOGY
The ProCeas® and the LaserCEM® are based on the OFCEAS coupled to a Low Pressure Sampling LPS (100 mbar absolute) developed and patented worldwide by AP2E (France), for the online analysis of several key gases in industrial, environmental and OH&S applications. It provides measurements with a very high spectral resolution in addition to an analysis system with a simplified sampling (no heated line nor treatment of samples) and an interference-free, fast and sensitive analysis, regardless of the matrix of the gas to be analysed.
The OFCEAS technology essentially differs from the CRDS (Cavity Ring Down Spectroscopy or Spectroscopy by resonance damping time) technology by its feedback principle: a part of the emitted radiation is returned from the chamber to the laser, enabling the tuning of the laser and the cavity resulting a resonance phenomenon. With a volume of only 15 cm3, the measuring cavity or cell is equipped with mirrors whose reflectivity exceeds 99.99%, providing an optical path between 1 and 10 km (approx. 10 meters in conventional technologies). The immediate consequence of this phenomenon is the identification of very intense absorption peaks with a very narrow spectral width. Given that the source used is a continuous laser, the system presents very high measurement stability: there is no zero drift and no need for new calibrations.
LOW-PRESSURE SAMPLING SYSTEM
The Low Pressure Sampling (LPS) System allows reducing the sample dew point (vapour pressure) to prevent the risk of condensation. The sampling method is achieved by the use of a sonic nozzle which allows reducing the sampling pressure down to 100 mbar. In these conditions the ambient temperature is almost always above the dew point eliminating the risk of condensation.
The integrity of the sample is therefore ensured. The very low airflow ensures a verylow response time and a minimal contamination of the system.
All these points enable to both increase the detection sensitivity and simultaneously reduce the noise, which permits the detection of gases at very low levels of sensitivity (traces of H2S – LOD under 50 ppb, or traces of H2O – under 1 ppm).
ProCeas
Complete pre-calibrated multicomponent (H2S, CO, CO2, H2, H2O, HCl, HCN, HF, N2O, NH3, O2 and CH4) laser Infrared Spectrometer designed for online monitoring of combustion process, natural gas (LNG), pure gas (trace) and ambient air (trace).
LaserCEM
The LaserCEM is a complete pre-calibrated multi-component (NO, NO2, NOx, SO2, CO, HCl, CO2, H2O, H2S, NH3, N2O, COS, SO3, CH4, HF) laser Infrared Spectrometer designed for Continuous Emissions Monitoring and compliant to standard EN 15267-3 : 2008 and QAL 1 de EN 14181 . With the announcement of the continuous measurement of SO3 (sulphur trioxide) at the exit of combustion units, AP2E represents the link from an industrial point of view between regulatory measurements (EMC) and optimizing production processes. If SO2 is now properly measured, it does not fully reflect the sulphur emissions from combustion units subject to this requirement. In the presence of oxygen, SO2 does in effect form sulphur trioxide (SO3), a gas that is much more corrosive than SO2. And other chemical phenomena occur, particularly in de-nitrification (DeNOx), which in the presence of ammonia may lead both to an over-consumption of ammonia and to filter blockages. Not measuring SO3 entails the under estimation of sulphur emissions, and also additional maintenance costs and over-consumption of reagents. To have continuous and precise knowledge of the SO2 / SO3 couple enables the operator to choose the controlling conditions for limiting the formation of SO3 and its indirect costs.
*Optical Feedback Cavity Enhanced Absorption Spectroscopy: technology developed and patented by the University Joseph Fourier (France), coupled to a Low Pressure Sampling (100 mbar absolute) developed and patented worldwide by AP2E, for the on-line analysis of different gases. By the end of 2010, after two years of R & D studies, the AP2E ProCeas® was the award recipient of the USA “R & D 100” which rewards the 100 most innovative global technologies of the year.
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
Continuous Emissions Monitoring Systems
Process gas online monitoring
Combustion analysers
Water Quality Monitoring Systems
Process monitoring in biogas plants
/in ABYSS Biogas Analyser, Ankersmid, AP2e, Biogas, Continuous Emissions Monitoring Systems, landfill, low pressure sampling LPS, Multipoint Monitoring, ProCeas Biogas, renewable, waste-to-energy /by aymericWhy is process monitoring necessary?
Biogas plants are biological systems involving various interacting micro-organisms that anaerobically degrade organic matter. The main product is biogas, a gas rich in methane (CH4) that can be used as a renewable fuel for vehicles or to generate heat or electricity for local use or for use via energy distribution grids.
The degradation involves four consecutive biological processes: hydrolysis, acidogenesis, acetogenesis and methanogenesis.
If one of these processes is negatively affected in any way there is an immediate influence on the other processes and the biogas plant can become unstable. Typical process failures include, among others, organic overload, hydraulic overload and ammonia inhibition. Process monitoring can help to understand what happens in a biogas plant and help to maintain a stable process. In many cases, a strongly inhibited micro-organism population or a total crash of the whole plant can have severe financial consequences for the biogas plant operator.
In general, process monitoring in anaerobic or other fermentation processes can help to:
The costs of online monitoring are often much lower than the costs and lost revenue associated with re-establishing a biologically destabilised plant.
For example, if a biogas plant has totally crashed it may have to be emptied and filled again with new inoculum. This, together with the necessary start-up period, means that several months can be lost during which the plant could have operated at full load. The financial consequences can be devastating for the plant operator.
Key parameters in Biogas monitoring
In biotechnological processes, the detailed monitoring of the fermentation product, in this case biogas, provides valuable information. Therefore, it is recommended to monitor both the volume of gas produced and the gas composition. With regard to process monitoring, a change in either gas production or gas composition can be an indicator of process imbalance.
Biogas primary constituents
PROCEAS
Stationary Biogas Monitoring Systems
In general, a large variety of devices can be applied for measuring biogas production but in practice, as biogas is of variable gas composition, dirty, corrosive, wet, and produced at low pressure, measuring biogas volume and composition accurately is one of the most challenging parameters at a biogas plant. In the long run not properly designed systems can pose considerable problems due to corrosion, fouling or general deterioration when measuring raw biogas.
AquaGas Pty Ltd introduces the OFCEAS technology and Proceas BioGas analyser designed by AP2e to address the analytical (online monitoring of biogas primary constituents) and operational (zero drift, minimum maintenance, no consumable, autonomous operation) biogas plants and methanation process monitoring requirements.
The ProCeas BioGas analyser features two patented technologies:
When sampling gas from landfill, anaerobic digestion/bacteria and other fermentation processes, the use of a dedicated sampling system is necessary to ensure a specific sample preparation and to preserve your monitoring equipment. Another advantage of the LPS System is the ability to reduce the sample dew point (vapour pressure) to prevent the risk of condensation. The sample extraction is achieved by the use of a sonic nozzle. The sample is taken at a very low pressure (50 to 200 mbar abs, 100mbar nominal). At 100 mbar abs. the ambient temperature is almost always above the dew point eliminating the risk of condensation.
The ProCeas offers sampling solutions tailored to the needs of the biogas production industry with automated sampling sequences and multipoint monitoring enabling fast, accurate and detailed analysis at various location with a single instrument: Raw biogas (1), processed biomethane (2), vented biogas (3) and stack emissions (4).
The Proceas Biogas Monitoring System is a cost effective online monitoring solution offering application specific features including:
The ProCeas analysers are manufactured and pre-calibrated by AP2e in France. The systems are built, integrated and tested in Australia by AquaGas. Standard systems are delivered fully integrated in a 19 inch rack suitable for installation in industrial settings (indoor 15-35C). For installation in hazardous area the BioGas Monitoring System is available in ATEX certified version.
ABYSS
Portable Biogas Analyser
Short term measurement during start up conditions
The start-up of a biogas plant is a very sensitive process. Due to slow multiplication of some of the micro-organisms involved in anaerobic sludge and the consequent risk of hydraulic overload, the start-up of a biogas plant can take much longer than in other biotechnological processes. A start-up time of 1-2 months is nothing exceptional in biogas plants.
Therefore, the effort in process monitoring has to be highest during start-up. If the start-up is too fast, a sub-optimal biogas process can be the consequence because the most favourable micro-organisms have not multiplied in the biogas plant. In contrast, a slow start-up can cause a possible loss of income as time is taken to reach full load capacity. The frequency of the measurements should be increased during this crucial process steps.
The ANKERSMID Portable Biogas Analyser is especially designed so that detailed gas analysis can be carried out at any time in any place. The entire gas conditioning system is housed in a compact and robust carrying case which ensures that the components can be removed easily and gas analysis performed in an efficient manner: quickly, safely and with a minimum maintenance. This system ensures reliable sample preparation without loss and prevents damage on the analysis system used downstream.
The ABYSS Portable Biogas Analyser uses a dual beam Infra-red cell highly resistant to corrosive flue gases and harsh environments of operation. Its light weight rugged enclosure fitted LCD screen, safety filter and Quick Connect fittings enables efficient short term measurement of emissions and process gas in waste recycling facilities, industrial fermentation plants and associated odour filtration systems.
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems) specifically designed and built to meet your application requirements.
Stationary Biogas Monitoring Systems
Data Acquisition and Handling Systems
Continuous Emissions Monitoring Systems
Gas Detection
Online analysis in the Chlorine industry
/in Applications, News, Water Quality /by aymericLarge-scale production of chlorine involves several steps and many pieces of equipment. The plant also simultaneously produces sodium hydroxide (caustic soda)hydrogen gas. A typical plant consists of brine production/treatment, cell operations, chlorine cooling & drying, chlorine compression & liquefaction, liquid chlorine storage & loading, caustic handling, evaporation, storage & loading and hydrogen handling.
BRINE
Key to the production of chlorine is the operation of the brine saturation/treatment system. Maintaining a properly saturated solution with the correct purity is vital, especially for membrane, diaphragm and mercuric cells. At several points in this process the brine is tested for hardness and strength.
After the ion exchangers, the brine is considered pure, and is transferred to storage tanks to be pumped into the cell room. The pure brine is heated to the correct temperature to control exit brine temperatures according to the electrical load. Brine exiting the cell room must be treated to remove residual chlorine and control PH levels before being returned to the saturation stage. This can be accomplished via dechlorination towers with acid and sodium bisulphite addition.
Failure to remove chlorine can result in damage to the ion exchange units. Brine should be monitored for accumulation of both chlorate anions, sulphate anions, and either have a treatment system in place, or purging of the brine loop to maintain safe levels, since chlorate anions can diffuse through the Membrane and contaminate the caustic, while sulphate anions can damage the anode surface coating.
SERES Analysers tailored to the need of Soda and Chlorine production plant
Your facilities operate 24/7. However, you can be operating blind if your essential assets are monitored infrequently using manual measurements. AquaGas introduces SERES Environnement cost-effective monitoring solutions of 9 parameters enabling anytime, online insight into your essential assets to help you prevent unplanned shutdowns, improve reliability, and reduce maintenance costs.
Online analyser parameters targeted
(5 TO 100 MG/L)
Online analyser exclusive features
Validated over the years in Chlorine production, chemical and petrochemical industries
SOLVAY, RHODIA, INEOS, FPG TAÏWAN, CIBA GEIGY, SANOFI, AVENTIS, PPG, ARKEMA, ASAHI GLASS, DE NORA…
Applications
Online Process Monitoring for
Total Organic Carbon (TOC)
/in News /by aymericTOC Evolution
AquaGas introduces the TOC Evolution from SERES Environnement packed with true technical innovation empowering direct TOC online monitoring.
TRUE TOC ANALYSIS
The TOC Evolution allows accurate and complete measurement of Total Organic Carbon featuring simultaneous and direct measurement of various TOC groups including Volatile Organic Compounds (VOC), Non-Purgeable Organic Carbons (NPOC) and Total Inorganic Carbons (TIC). In addition it is possible to complete the TOC Evolution water quality monitoring capacities by adding optional parameters Total Phosphorus (TP) and Total Nitrogen (TN) or the correlated Dissolved Organic Carbon (DOC)
PRINCIPLE
TOC Evolution measures the pollution load of Organic Carbons (OC) in any type of water by oxidation of the OC in CO2 allowing accurate Non Dispersive Infra Red measurement (NDIR) of the produced CO2 .
Reactor
New SERES patented high performance multifunctional reactor providing powerful and efficient oxidation. Its stripping function enables ultra-fast and optimal transfer of CO2.
Enhanced NDIR detection
Integral optical system for accurate, continuous and online IR measurement.
With a detection limit lower than 0.1 mg/l and fast analysis sequence ( less than 6 minutes), the TOC Evolution suits an unprecedented wide range of applications in the field of Water Quality Monitoring including but not limited to: industrial wastewater, process water and effluents/influents monitoring, Fresh water in water table, sources, drinking water purification and distribution processes, production of pure water such as demineralized, condensate water, steam production…
FEATURES AND BENEFITS
Compact full stainless steel field proof enclosure
Intuitive colour touchscreen interface
Quick response time, high precision (+/- 3%) and repeatability (+/- 3%)
User programmable sampling sequences
Low maintenance and operation cost
Cost effective TRUE TOC online monitoring
Broad measuring range from 0-10mg/l to 0-5 g/l
AT THE HEART OF INNOVATION
SERES environnement is continually implicated in the process of technological innovation. “We constantly re-invest in research and development in order to provide our clients with the most advanced technologies. For SERES, the notion of change is a permanent challenge. We work in partnership and collaboration with French and foreign research centres (such as the CNRS – the French National Centre for Scientific Research), Engineering Colleges and Universities.” SERES environnement makes 60% of its turnover on the export market in more than 35 countries with references in the Oil & Gas, Water treatment, Cement and Glass industry, Energy and large manufacturing companies…