ProCeas® the new generation of Biogas analyzers

High resolution and accuracy of measurements
Low maintenance and utilities costs & no drift and cross interferences
Fast response time

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Application note Biogas analyzers

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Nos applications

Biogas quality

Biogas providers, private and public sector evaluated several technologies to implement continuous real-time monitoring of CH4, CO2, H2S and O2 in biogas.

The ProCeas® has been selected 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.

Customer uses the ProCeas® Biogas to measure various level of CH4, CO2, H2S (low level) and O2 in Biogas for several application: cogeneration unit and pipeline injection.


OFCEAS technology

For continuous Biogas and Biomethane quality monitoring (real time at ppb levels), the ProCeas® spectrometer is equipped with a laser at a single wavelength used to determine the concentration of a specific compound with an extremely low detection limit and fast response time.

The OFCEAS extended optical path and continuous signal feedback provide a high definition spectral response using what is essentially a traditional absorption measurement.

The OFCEAS system uses a high-finesse optical cavity to provide path lengths of dozens of kilometres. The OFCEAS technology can also, take advantage of broadband light sources to provide multi-component analysis, while offering improved sensitivity (ppb).

Key features

Low detection level
Complete pre-calibrated laser infra-red spectrometer
No Zero drift and no Span drift
Fast response-time with LPS (Low Pressure Sampling) system
Highly selective
Multigas analyzer: CH4, H2S, CO2, O2, H2O, NH3


Analytical specifications

Impurities Rangea LODb
 CH4 0 – 100 % <0,1 %
CO2 0 – 100 % <0,01 %
O2 0 – 25 % <0,05 %
C2H6 0 – 10 % <0,1 %
H2O 0 – 10 % <5 ppm
H2S 0 – 2000 ppm 50 ppb
NH3 0 – 1000 ppm 50 ppb

a adjustable range on request
b limit of detection 3 sigma 60 seconds


  • Response time T10-90 : < 10 seconds
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Application note Biogas analyzers

Suivez ce lien pour voir toutes

Nos applications