Determination of gas composition in a biogas plant using a Raman-based sensor system

S. C. Eichmann, J. Kiefer, J. Benz, T. Kempf, A. Leipertz, T. Seeger

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We propose a gas sensor, based on spontaneous Raman scattering, for the compositional analysis of typical biogas mixtures and present a description of the sensor, as well as of the calibration procedure, which allows the quantification of condensable gases. Moreover, we carry out a comprehensive characterization of the system, in order to determine the measurement uncertainty, as well as influences of temperature and pressure fluctuation. Finally, the sensor is applied at different locations inside a plant in which biogas is produced from renewable raw materials. The composition is monitored after fermenting, after purification and after the final conditioning, where natural gas is added. The Raman sensor is able to detect all the relevant gas components, i.e. CH4, CO2, N-2 and H2O, and report their individual concentrations over time. The results were compared to reference data from a conventional gas analyzer and good agreement was obtained.
Original languageEnglish
Article number075503
JournalMeasurement Science and Technology
Volume25
Issue number7
Early online date16 Jun 2014
DOIs
Publication statusPublished - 1 Jul 2014

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gas composition
Biogas
Raman
Sensor
sensors
Sensors
Chemical analysis
Gases
gases
Natural gas conditioning
Gas Sensor
Raman Spectra
Measurement Uncertainty
Natural Gas
Chemical sensors
Purification
Conditioning
Quantification
Raman scattering
Raw materials

Keywords

  • spontaneous Raman scattering
  • concentration measurements
  • biogas composition

Cite this

Determination of gas composition in a biogas plant using a Raman-based sensor system. / Eichmann, S. C.; Kiefer, J.; Benz, J.; Kempf, T.; Leipertz, A.; Seeger, T.

In: Measurement Science and Technology, Vol. 25, No. 7, 075503, 01.07.2014.

Research output: Contribution to journalArticle

Eichmann, S. C. ; Kiefer, J. ; Benz, J. ; Kempf, T. ; Leipertz, A. ; Seeger, T. / Determination of gas composition in a biogas plant using a Raman-based sensor system. In: Measurement Science and Technology. 2014 ; Vol. 25, No. 7.
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