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Title
Behavior of GCMS tar components in a water gas shift unit operated with tar-rich product gas from an industrial scale dual fluidized bed biomass steam gasification plant
AuthorKraussler, Michael ; Binder, Matthias ; Hofbauer, Hermann In der Gemeinsamen Normdatei der DNB nachschlagen
Published in
Biomass Conversion and Biorefinery: Processing of Biogenic Material for Energy and Chemistry, Berlin ; Heidelberg, 2016, Vol. Article not assigned to an, page 1-11
PublishedSpringer, 2016
Edition
Published version
LanguageEnglish
Document typeJournal Article
Keywords (EN)Biomass steam gasification / Dual fluidized bed / Hydrogen / Product gas / Water gas shift / GCMS tar
ISSN2190-6823
URNurn:nbn:at:at-ubtuw:3-1695 Persistent Identifier (URN)
DOI10.1007/s13399-016-0205-y 
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 The work is publicly available
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Behavior of GCMS tar components in a water gas shift unit operated with tar-rich product gas from an industrial scale dual fluidized bed biomass steam gasification plant [0.61 mb]
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Abstract (English)

In this paper, the behavior of gas chromatography mass spectroscopy (GCMS) tar components in a three-stage water gas shift (WGS) unit is discussed. The GCMS tar measurements were carried out during the long-term operation (2250 h) of a WGS unit with tar-rich product gas from the commercial biomass steam gasification plant in Oberwart, Austria. In order to investigate the behavior of the GCMS tar components, four tar measurements were performed during the long-term operation of the WGS unit which employed a commercial Fe/Cr-based catalyst. The tar-rich product gas was extracted before reaching the scrubbing unit of the biomass steam gasification plant, therefore, the extracted gas contained a high amount of tar. In order to investigate the behavior of the GCMS tar in the WGS unit, the GCMS tar concentrations were determined at the inlet and the outlet of the WGS unit. The samples were taken during full load operation and during partial load operation of the WGS unit, respectively, the biomass steam gasification plant. In addition to the increase of the volumetric hydrogen content from about 40 % (d.b.) to 50 % (d.b.), the amount of GCMS tar was reduced (up to 38 %) as the gas passed through the WGS unit. No catalyst deactivation was observed. Furthermore, the efficiency of the hydrogen increase or the GCMS tar reduction did not depend on whether the operation of the WGS unit, respectively, the gasification plant was at partial load or full load.

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CC-BY-License (4.0)Creative Commons Attribution 4.0 International License