Air Quality Monitoring Systems – AQMS

CEMS and process gas analyser

A 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.

AquaGas Multigas CEMS

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.

MAMOS-Multigas-analyser-CEMS-features

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, Osensors 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.

MAMOS-CEMS-Flow diagram-2

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.

Gas Analysis Method Range   I   Resolution Accuracy Time (T90) Conformity
O2

 

Oxygen

Electrochemical, Partial Pressure 20.95% |

 

0.01%

± 0.1% abs. or 5% rel. 45 sec ISO 12039,
CTM-030
O2

 

Oxygen

Electrochemical, Partial Pressure 25.00% |

 

0.01%

± 0.1% abs. or 5% rel. 45 sec ISO 12039,
CTM-030
O2

 

Oxygen

Electrochemical, Partial Pressure 100.00% |

 

0.01%

± 0.1% abs. or 5% rel. 45 sec ISO 12039,
CTM-030
CO

 

Carbon Monoxide

Electrochemical Sensor 4 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec ISO 12039,
CTM-030
CO

 

Carbon Monoxide

Electrochemical, with H2 compensation 4 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec ISO 12039,
CTM-030
CO

 

Carbon Monoxide

Electrochemical Sensor 20 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec ISO 12039,
CTM-030
CO

 

Carbon Monoxide

Electrochemical, with H2 compensation 20 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec ISO 12039,
CTM-030
CO

 

Carbon Monoxide

Electrochemical Sensor 10% |

 

0.001%

± 0.005% abs. or 5% rel. 45 sec ISO 12039,
CTM-030
CO

 

Carbon Monoxide

NDIR

 

Non Dispersive Infra Red

10% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec EN 15058 and

 

Method 10

CO

 

Carbon Monoxide

NDIR

 

Non Dispersive Infra Red

25% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec EN 15058 and

 

Method 10

CO

 

Carbon Monoxide

NDIR

 

Non Dispersive Infra Red

50% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec EN 15058 and

 

Method 10

CO

 

Carbon Monoxide

NDIR

 

Non Dispersive Infra Red

100% |

 

0.1%

± 0.5% abs. or 5% rel. 45 sec EN 15058 and

 

Method 10

CO2

 

Carbon Dioxide

NDIR

 

Non Dispersive Infra Red

5% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec ISO 12039,

 

OTM-13

CO2

 

Carbon Dioxide

NDIR

 

Non Dispersive Infra Red

10% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec ISO 12039,

 

OTM-13

CO2

 

Carbon Dioxide

NDIR

 

Non Dispersive Infra Red

25% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec ISO 12039,

 

OTM-13

CO2

 

Carbon Dioxide

NDIR

 

Non Dispersive Infra Red

50% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec ISO 12039,

 

OTM-13

CO2

 

Carbon Dioxide

NDIR

 

Non Dispersive Infra Red

100% |

 

0.1%

± 0.5% abs. or 5% rel. 45 sec ISO 12039,

 

OTM-13

CxHy

 

Total Hydrocarbons

NDIR

 

Non Dispersive Infra Red

1% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec  
CxHy

 

Total Hydrocarbons

NDIR

 

Non Dispersive Infra Red

5% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec  
CxHy

 

Total Hydrocarbons

NDIR

 

Non Dispersive Infra Red

10% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec  
CxHy

 

Total Hydrocarbons

NDIR

 

Non Dispersive Infra Red

25% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec  
CxHy

 

Total Hydrocarbons

NDIR

 

Non Dispersive Infra Red

50% |

 

0.01%

± 0.05% abs. or 5% rel. 45 sec  
CxHy

 

Total Hydrocarbons

NDIR

 

Non Dispersive Infra Red

100% |

 

0.1%

± 0.5% abs. or 5% rel. 45 sec  
NO

 

Nitric Oxide

Electrochemical Sensor 1 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec CTM-022
NO

 

Nitric Oxide

Electrochemical Sensor 5 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec CTM-022
NO2

 

Nitrogen Dioxide

Electrochemical Sensor 1 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 60 sec CTM-022
NO2

 

Nitrogen Dioxide

Electrochemical Sensor 4 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 60 sec CTM-022
SO2

 

Sulphur Dioxide

Electrochemical Sensor 2 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec  
SO2

 

Sulphur Dioxide

Electrochemical Sensor 5 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec  
H2S

 

Hydrogen sulfide

Electrochemical Sensor 1 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 70 sec  
H2S

 

Hydrogen sulfide

Electrochemical Sensor 10 000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 45 sec  
H2

 

Hydrogen

Electrochemical Sensor 2 000ppm |

 

1ppm

± 10ppm abs. or 5% rel. 50 sec  
H2

 

Hydrogen

Electrochemical Sensor 20 000ppm |

 

1ppm

± 10ppm abs. or 5% rel. 70 sec  
H2

 

Hydrogen

TCD

 

Thermal Conductivity Detector

10% |

 

0.1%

± 0.5% abs. or 5% rel 45 sec  
H2

 

Hydrogen

TCD

 

Thermal Conductivity Detector

25% |

 

0.1%

± 0.5% abs. or 5% rel 45 sec  
H2

 

Hydrogen

TCD

 

Thermal Conductivity Detector

50% |

 

0.1%

± 0.5% abs. or 5% rel 45 sec  
H2

 

Hydrogen

TCD

 

Thermal Conductivity Detector

100% |

 

0.1%

± 0.5% abs. or 5% rel 45 sec  
N2O

 

Nitrous Oxide

NDIR

 

Non Dispersive Infra Red

2 000ppm |

 

1ppm

± 10ppm abs. or 5% rel 45 sec ISO 21258
N2O

 

Nitrous Oxide

NDIR

 

Non Dispersive Infra Red

5 000ppm |

 

1ppm

± 10ppm abs. or 5% rel 45 sec ISO 21258
CHF3

 

Fluoroform (Refrigerant R23)

NDIR

 

Non Dispersive Infra Red

2.5% |

 

0.01%

± 0.05 abs. or 5% rel. 45 sec  
CL2

 

Chlorine

Electrochemical Sensor 250ppm |

 

1ppm

± 5ppm abs. or 5% rel. 60 sec  
VOC

 

Volatile Organic Compounds

PID

 

Photo Ionization Detector

100ppm |

 

1ppm

± 5ppm abs. or 5% rel. 120 sec Method 21
VOC

 

Volatile Organic Compounds

PID

 

Photo Ionization Detector

1000ppm |

 

1ppm

± 5ppm abs. or 5% rel. 120 sec Method 21

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.

MAMOS-CEMS-interface

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.

MAMOS-CEMS-Connector panel MAMOS-CEMS-Connector panel-2

Advanced Features

  • Miniature and field replaceable technology
  • Standard configuration includes 6 sensors (NDIR, TCD, PID or Electrochemical)
  • Measured gases: O2, CO, CO2, CxHy, NO, NO2, SO2, H2S, H2, N2O, Cl2, VOC
  • Built-in real-time calculations for the following process parameters:

Variable Method Range   I   Resolution Accuracy Response Time (T90)
Tgas

 

Gas temperature

K-type thermocouple -50 ÷ 1000°C |

 

0.1°C

± 2°C 10 sec
Tgas

 

Gas temperature

S-type thermocouple -50 ÷ 1000°C |

 

0.1°C

± 2°C 10 sec
Tamb

 

Boiler intake air temperature

PT500 resistive sensor -50 ÷ 1000°C |

 

0.1°C

± 2°C 10 sec
DP

 

Differential Pressure

Silicon piezo-resistive pressure sensor 25hPa ÷ +25hPa |

 

1Pa (0.01hPa)

± 2Pa abs. or 5% rel. 10 sec
V

 

Gas velocity

With sampling probe equipped Pitot tube & pressure sensor 1 ÷ 50m/s |

 

0.1m/s

0.3m/s abs. or 5% rel. 10 sec
Lambda λ

 

Excess air number

Calculated 1 ÷ 10 |

 

0.01

± 5% rel. 10 sec
qA

 

Stack loss

Calculated 0 ÷ 100% |

 

0.1%

± 5% rel 10 sec
Eta η

 

Combustion Efficiency

Calculated 0 ÷ 120% |

 

0.1%

± 5% rel 10 sec
  • Large display / User friendly menu
  • Built-in gas chiller with continuous condensate removal
  • Data-logger with SD card for results collection.
  • Analogue outputs (both current and voltage) to control external devices
  • User configurable functions controlled via digital and analogue inputs
  • USB, LAN, RS485 and MODBUS

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, (…)

MAMOS-CEMS-MD3-Gas-Dryer

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.

MAMOS-CEMS-Compact Version

Dimensions (W x H x D) 240 mm x 360 mm x 160 mm
Weight (depends on equipment) 4 kg ÷ 5 kg
Casing’s material ABS
Protection grade IP 20
Mounting plate

 

dimensions (H x W) | material | weight

596 mm x 450 mm | aluminium | 1.9 kg
Operating conditions T: 10°C ÷ 50°C, RH: 5% ÷ 90% (non-condensing)
Storing temperature 0°C ÷ 55°C
Power consumption (analyser unit only) 30 W max
Data-logger: type | size | number of results SD flash card | max 4GB | practically unlimited
Display: type | parameters Backlit LCD | 20 characters x 4 lines
Gas pump: type | max gas flow | standard gas flow Diaphragm | max 2l/min | 1.5l/min (90l/h)
Maximal extraction point pressure: Atmospheric ±200hPa
Current analogue outputs 4 outputs 0mA ÷ 20mA or 4mA ÷ 20mA
Voltage analogue outputs 4 outputs 0V ÷ 5V or 0V ÷ 10V
Digital inputs 2 inputs, TTL levels, floating = high level
Digital outputs 1 open collector output + 2 SPDT relays (optional)
Computer communication interface B type USB socket

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.

MAMOS-CEMS-Split Version-2

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.

MAMOS-CEMS-Split Version

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.
Mamos - Mulitplexed CEMS

Madur, state-of-the-art monitoring solutions

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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.

OFCEAS & Low Pressure Sampling

Continuous 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.

ProCeas

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.

r4

  • No Sample heated line required to eliminate condensation: low power consumption, no related ongoing maintenance
  • True Direct Extractive CEMS/Process analyser (no dryer or scrubber)
  • No risk of absorption/desorption typical of high SO2/SO3 application
  • Low pressure accentuate the gas finger print
  • Cost effective multipoint monitoring
  • Standard system comply with ATEX standards

The integrity of the sample is therefore ensured. The very low airflow ensures a verylow response time and a minimal contamination of the system.

OFCEAS Detection limits

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.