Characterization of a fast gas analyzer based on Raman scattering for the analysis of synthesis gas

Simone C Eichmann, Martin Weschta, Johannes Kiefer, Thomas Seeger, Alfred Leipertz

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

A sensor system for fast analysis of synthesis gas (mixtures of CO and H2) is proposed and characterized. The system is based on spontaneous Raman scattering, which enables simultaneous concentration measurements of all relevant species. For typical synthesis gas applications, this system has to face large variations of temperature and pressure. In addition, strong fluctuations in mixture composition may occur, which lead to rather inconvenient signal intensities. In this paper, we describe a low resolution spectrometer designed to function as a synthesis gas sensor and characterize pressure and temperature effects on concentration measurements. In addition, the use of different spectral ranges and calibration strategies is investigated in view of measurement accuracy and precision.
Original languageEnglish
Article number125104
Number of pages7
JournalReview of Scientific Instruments
Volume81
Issue number12
DOIs
Publication statusPublished - Dec 2010

Keywords

  • Raman spectroscopy
  • spectrochemical analysis
  • syngas

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