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NOx Emissions Testing

The emission of pollutants resulting from a multitude of activities (industry, transport, …) alters the atmospheric composition and degrade air quality. Control of gaseous pollutant emissions in the atmosphere has become a major challenge for the protection of human health and the environment. To avoid these risks, the regulation has established discharge limits thresholds for certain pollutants and requires periodic inspections whose frequency depends on the type of activity (from 3 months to 3 years). Accredited stack testing companies and/or Site Environmental Managers are responsible for conducting short to medium term environmental compliance monitoring tasks in a wide range of industries and processes such as power plants and large manufacturing facilities including paper mill, foundry, waste recycling facilities,  refineries…

NOx Portable Analysers

for Environmental Compliance in the power generation industry

Our customer, manufacturers and distributor of diesel, gas engines and power systems, has chosen AquaGas Monitoring Systems for the supply of handheld and portable NOx gas analysers. Convinced by the achieved performances, our client is using nowaday the GA12Plus and GA40TPlus gas analysers to ensure environmental compliance, combustion efficiency and optimal operating conditions of their small to large scale onsite power generators and associated filtration systems.

 

Each analyser comes with built in logger, NO, NO2 and O2 gas proprietary measuring cells, stack temperature sensor, flow and velocity measurement, advanced sampling systems, programmable monitoring sequences, wireless communications and deliver real time normalised (O2, Pressure and Temperature compensated, corrected on dry gas) concentrations with up to 18 hrs battery life.

The GA12 and GA40TPlus are multigas analysers and monitoring concept develop by Madur electronics. Madur was initially founded in 1984 in Vienna Austria and is now worldwide recognised manufacturer of reliable and cost effective equipment for gas analysis applications. Since 2013, Madur operates sales, production, service and R&D from their headquarters located in Poland to provide customers the most advanced solutions, the fastest possible with professional services and ongoing technical support.

MADE TO MEASURE

Environmental Monitoring and Process Control

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.

City Of Gold Coast

Committed to a better environment and sustainable future, AquaGas Pty Ltd is proud to assist the City of Gold Coast with the installation of a new gas monitoring system used to optimize the production of biogas as part of the government’s renewable energy target. Unlike natural gas derived from fossil fuels, Biogas is a mixture of gases produced by the fermentation process of fresh waste material in anaerobic (without air) conditions making biogas a renewable “natural gas” resource. With a complete monitoring system currently online, this new installation expands AquaGas references in the field of process control and environmental compliance at Biogas plant.

Biogas Monitoring Systems

for the City of Gold Coast

Biogas plants help to significantly reduce fugitive emissions of greenhouse gases and odour precursors while recovering energy for better process efficiency. There are multiple advantages in measuring biogas composition along the fermentation process and accurate online reading of CH4, H2S, CO2 and O2 have become our clients key factors in terms of plant operations and environmental compliance.

City of Gold Coast entrusted AquaGas Monitoring Systems for the supply, installation and commissioning of a biogas monitoring system ABYSS ABG as required to operate their three digesters each holding 27 ML, 15 ML and 15 ML each respectively. The turnkey and customised system delivered and commissioned by AquaGas enables safe plant operations, combustion efficiency and high reliability thanks to is a process sampling system with continuous liquid drain, dual stage pressure rated up to 10 bars, particulate filter, condensate trap and moisture alarm. At the heart of the system, the ABYSS ABG analyser from Ankersmid Sampling BVBA is fitted with high precision gas proprietary cells for simultaneous online measurements of CH4 content in % by NDIR (Non Dispersive Infra Red) and H2S traces down to 1 ppm (Electrochemical cell).

The ABYSS BIOGAS ABG and SYNGAS ASG Series are manufactured by Ankersmid Sampling BVBAANKERSMID® is well-known in the industry for more than 30 years now with subsidiaries in several countries (Netherlands, France, China, Romania, Germany, Korea etc.) and more than 100 employees world-wide assures ANKERSMID® in a leading position in the field of gas sampling and laboratory equipment. All products are designed and manufactured by ANKERSMID® Sampling Belgium including but not limited to gas sample probes, gas coolers, compact conditioning systems, NOx-converters as well as a complete range of universal gas sampling components. ANKERSMID® offering includes the most complete range of CEMS sampling system components and accessories completed with the versatile ABYSS series gas analysers. The modular and universal design of the CEMS components and accessories empowers cost effective, reliable and innovative system integration.

MADE TO MEASURE

Environmental Monitoring and Process Control

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.

AquaFID THC CEMS – Continuous Emissions Monitoring Systems

 

AquaGas supplies four FID CEMS AquaFID

For Sydney’s greater remediation project

AquaGas Monitoring Systems is proud to be part of a major remediation project taking place in the heart of Sydney’s next financial, tourist, cultural and entertainment precinct. This significantly large remediation project is now underway over the next three years to remediate on site 150,000 tonnes of contaminated fill material from a former gas plant.

One of the main actors in this project,  South Pacific market leader for the containment and filtration of hydrocarbons (sheen, gasoline, diesel and oils) and a range of other chemicals, has selected AquaGas Pty Ltd for the supply, installation and commissioning of the Continuous Emissions Monitoring Systems and Process Analysers at the remediation site.

To meet our client environmental monitoring requirements, AquaGas has offered a unique CEMS (Continuous Emissions Monitoring Systems) solution based on Gas Chromatography, the AquaFID. The AquaFID is a fully automatic THC CEMS integrated in Australia by AquaGas for continuous and simultaneous measurement of Total Hydrocarbons (THC), Non Methane Hydrocarbons (NMHC) and Methane (CH4).

The AquaFID key features includes the association of a field proven, robust fast loop heated sampling system from Ankersmid Sampling BVBA (Belgium) with a highly accurate M529H FID analysers from PCF (Italia).

The Exproof sampling system is fitted with extensive features such as calibration port as per international CEMS code and EN14181 for reliable continuous compliance monitoring. A combined H2 and Zero Air generator FID Station from Leman Instruments (France) ensures gas cylinders free operation for more safety and minimal site attendance.

The remediation projects are being strictly monitored in real time. Data is regularly reported to the EPA.

 

AquaGas Pty Ltd

Integrated systems and Customised Services

aquagas_logo_500px

AquaGas Pty Ltd has the tools and technologies needed to accurately measure atmospheric emissions of gaseous pollutants helping you in improving air quality and environmental performances.

  • Portable Gas Analysers

    Multigas analysers fitted with a combination of proprietary gas cells for short term monitoring of biogas, syngas and combustion processes.

  • Isokinetic Sampling Console

    Isokinetic sampler developed for short to medium term emissions monitoring, fulfilling all the requirements of the dioxins and persistent organic compounds (POPs), PCBs, metals, HCB and fine dust measurement standard within the same sampling train

  • Data Acquisition and reporting Software

    Data Aquisition Software (CDAS) is a fully MCERTS accredited (parts A, B, C1 & C2) real time data acquisition software – now available for touch screens and windows 10. CDAS is customisable and flexible, allowing it to collect raw data from a range of instruments for CEMS

ENVIRONMENTAL MONITORING

Stack Testing

Ankersmid Sampling

APS Portable Gas Sampling System

The emission of pollutants resulting from a multitude of activities (industry, transport, …) alters the atmospheric composition and degrade air quality. Control of gaseous pollutant emissions in the atmosphere has become a major challenge for the protection of human health and the environment. To avoid these risks, the regulation has established discharge limits thresholds for certain pollutants and requires periodic inspections whose frequency depends on the type of activity (from 3 months to 3 years). Accredited stack testing companies are responsible for conducting short to medium term environmental compliance monitoring tasks in a wide range of industries and processes such as power plants and large manufacturing facilities including paper mill, foundry, waste recycling facilities,  refineries…

Prior to be analysed, the gas extracted from the discharge stack or process duct requires delicate conditioning which mainly consist of particulate filtration and moisture removal. Failure to achieve an efficient sample preparation can results in inaccurate measurements, loss of data or damaged equipment.

While stack testers and local authorities are continuously devoting time and knowledge to optimise the methods and protocols related to short to medium terms mandatory analysis campaign, ANKERSMID® has invested its long time expertise in developing the APS Portable Gas Conditioning Systems in direct collaboration with  leading stack testing companies.

As a result, ANKERSMID® Portable Sampling System APS provides stack testers with  features tailored to short term source testing in a robust and light weight design. The complete systems responds to today’s demand in terms of operation and compliance.

ANKERSMID®

Portable Sampling System APS

ANKERSMID® Portable Sampling System APS is a complete gas sampling train composed of:

  • APP Heated Gas Sampling probe

    High temperature filtration

  • AHL Heated Gas Sample line

    Fast and reliable sample gas transfer

  • APS Gas Sampling System

    Accurate and performant gas conditioning

APP Portable Heated Gas Sampling Probe

The APP Heated Gas Sampling Probe is a light weight sampling gun enabling high temperature filtration directly at the sampling point.

Portable probe APP trans 2

The probe is heated up to 180°C in order to maintain the sample temperature above acid gases dew point. A filter element of 150 mm is integrated, suitable for most applications up to 1g of dust per cubic meter of emissions. Thanks to its design, the filter can be replaced or checked without the need of dismounting the probe. For applications where the dust load reaches 10 g/m³, a blow-back option can be fitted. Calibration gas can be injected directly into the probe through the calibration gas port according to emission monitoring standards enforcing test gas feeding via the probe’s filter element.

MAIN FEATURES

180°C operating temperature

Integrated over temperature safety switch

Low temperature alarm contact

Test gas port according to EN14181 available as standard

Light weight

Ready to operate in 15 minutes

Low and Easy maintenance

Universal mounting clamp for heated line

Compact design and universal applicability, easy handling with mounting eye on housing (2m chain incl.)

APP150 Portable heavy duty ABS case for safe transport

AHL Heated Sample Line

AHL Heatedline-v2

The AHL Heated sample line is perfectly suited to mobile applications. It features a highly flexible smooth silicon outer jacket and can be fitted with options enabling efficient installation and operation:

  • Quick connect fittings at both ends: stainless steel pressure release connector directly inserted into the heated lines hard cap terminations (no cold spot)
  • Built-in cable with plugs to feed the APP sampling probe with power – No additional cable or power source required at the sampling location.
  • Additional inner tubes for test gas (calibration via probe filter) or compressed air (back-flush)

APS Portable Gas Conditioning System

 

portable conditioning 3xx 2

The APS portable sampling system is designed so that detailed gas analysis can be carried out at any time in any place. The entire sampling system is housed in a compact and robust carrying case which ensures safe transport and easy set-up. All the components can be easily accessed for inspection or routine maintenance. The APS concept allows you to perform gas analysis in an efficient manner, safely and with a minimum of maintenance. This system ensures reliable sample preparation without loss and prevents damage on the downstream analysis system. It is suitable for a large range of applications and has already been adopted by many stack testers around the world.

MAIN FEATURES

Fully automated

Moisture alarm (detection of sample condensates)

Extremely stable dew point +/-1 degree C

Optimal reliability

Compact and robust design

Light weight

Ready to operate in 15 minutes

Low and Easy maintenance

PFA coated heat exchanger

PTFE coated sampling pump

Preliminary sample filter

Built-in temperature controller for the heated line

AquaGas Pty Ltd

Integrated high performance monitoring solutions

aquagas_logo_500px

AquaGas Pty Ltd has the tools and technologies needed to accurately measure atmospheric emissions of gaseous pollutants helping you in improving air quality and environmental performances.

  • Portable Gas Analysers

    Multigas analysers fitted with a combination of proprietary gas cells for short term monitoring of biogas, syngas and combustion processes.

  • Isokinetic Sampling Console

    Isokinetic sampler developed for short to medium term emissions monitoring, fulfilling all the requirements of the dioxins and persistent organic compounds (POPs), PCBs, metals, HCB and fine dust measurement standard within the same sampling train

  • Data Acquisition and reporting Software

    Data Aquisition Software (CDAS) is a fully MCERTS accredited (parts A, B, C1 & C2) real time data acquisition software – now available for touch screens and windows 10. CDAS is customisable and flexible, allowing it to collect raw data from a range of instruments for CEMS

 

Ankersmid Sampling

ANKERSMID® , well-known in the monitoring industry as Ankersmid M&C, has the benefits of 30 years of experience in developing state of the art gas sampling and gas conditioning equipment tailored to CEMS (Continuous Emissions Monitoring Systems) and stack testing (short to medium term measurements). Subsidiaries in several countries (Netherlands, France, China, Roumania, Germany, Korea…) and more than 100 employees world-wide place ANKERSMID® in a leading position within the field of environmental monitoring and process control instrumentation.

Process monitoring in biogas plants

Why 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.

 

Wasistbiogas

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:

  • Give an overall picture of the biogas process
  • Identify upcoming instabilities in anaerobic digester before a crash happens
  • Accompany a successful start-up or re-start of a plant

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

Biogas plant

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

  • CH4 and H2S measured during the methanation process give a good overall view of the performance of the degradation process and bacterial activity. A decrease in methane content can be a first sign of organic overload, provided that the feedstock mix has not recently changed. Similarly, a sudden increase in H2S can provoke process instability.
  • Simultaneous real-time monitoring of CH4, H2S and CO2 empower process automation (i.e. operation of scrubbers)
  • Before entering the distribution chain, the product must be qualified, again for economic reasons (excess H2S and/or CO2 in the CH4 would make it ‘sour’ and potentially corrosive enough to damage distribution infrastructure)
  • CH4, H2S, CO, CO2 and O2 Continuous Stack Emissions Monitoring required for environmental compliance

 

PROCEAS

Stationary Biogas Monitoring Systemslogo-ap2e

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.

AP2e ProCeas BioGas

 

The ProCeas BioGas analyser features two patented technologies:

  • The OFCEAS IR Laser technology for enhanced specificity, selectivity, accuracy and stability (no instrumental response drift.):  The OFCEAS is a self-referencing spectrometer. This means that there is no need to re-analyse a zero and/or a span gas on a regular basis. The “zero” information is contained in the direct measurement spectrum while the “span” information is intrinsic to the analyser (pre-calibrated with 4 OD linear response).

OFCEAS - ProCeas BioGas

  •  The Low Pressure Sampling (LPS) system enabling low-cost installation thank to non-heated lines and reduced maintenance. Lowering the pressure of a gas sample reduces the bandwidth of the absorbance bands. At atmospheric pressure, simultaneous measurement of H2S (ppm’s) in presence of CO2 (10’s %), CH4 (10’s %) can be tainted by cross response / false positive due to spectral overlapping of CO2 and CH4 bands with H2S  information.  If operating at 100 mbar, all absorption bands have narrowed down to the point where there is no spectral overlap of the absorption bands. Cross response have been eliminated. 

OFCEAS Detection limits

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.

LPS biogas sampling probe

  • No heated line required to eliminate condensation: low power consumption, no related ongoing maintenance
  • Sample does not need to be treated – True Direct Extractive CEMS and Process analyser
  • No risk of absorption/desorption

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).

 

AP2e ProCeas multistreams

 

The Proceas Biogas Monitoring System is a cost effective online monitoring solution offering application specific features including:

  • Field proven technologies in the Biogas production industry
  • Simultaneous measurement of all primary constituents of Biogas
  • Fully automated standalone system (automatic calibration and sampling sequences)
  • Low Pressure Sampling (no sample condensation)
  • Deep particulate filtration
  • PFA and PTFE gas path (essential to avoid loss of components of interest)
  • Fast, accurate and reliable online analysis
  • No drift or deviation therefore minimal calibration requirements
  • Low-maintenance and user friendly system
  • Site specific sampling solutions

ProCeas Layout

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

Ankersmid Sampling

 

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.

Poster Process Monitoring in Biogas Plants-v1

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.

portable emissions measurement system-probe

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.