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Analysis of trace compounds generated by pressurized oxygen blown entrained flow biomass gasification
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.ORCID iD: 0000-0003-2890-3546
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.ORCID iD: 0000-0001-9124-0155
2014 (English)In: Environmental Progress and Sustainable Energy, 2014, Vol. 33, p. 699-705, article id 3Conference paper, Published paper (Refereed)
Abstract [en]

Trace compounds were measured in synthesis gas and waste water from a pilot scale pressurized entrained flow oxygen blown biomass gasifier. The feedstock used was milled soft stem wood powder. Gaseous trace compounds were analyzed by gas chromatography. Up to 20 ppm of hydrogen sulfide was observed in the cold synthesis gas and the concentration seemed to be independent of the oxygen equivalence ratio (ER). Benzene varied from 30 to 1100 ppm, strongly depended on the ER and correlated well with the methane concentration. The concentrations of acetylene and ethylene increased as the ER was reduced and could have acted as precursors for the observed soot particles which were characterized using thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy. Common polycyclic aromatic hydrocarbons from high temperature biomass gasification such as pyrene, phenanthrene, fluoranthene, and naphthalene were observed in low concentrations in the soot, in the cold synthesis gas and also in the waste water from the quench. Inorganic elements from the feedstock were observed in the waste water. Comparisons were also made with previous results from a black liquor gasifier.

Place, publisher, year, edition, pages
2014. Vol. 33, p. 699-705, article id 3
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-209DOI: 10.1002/ep.11975Scopus ID: 2-s2.0-84904252341OAI: oai:DiVA.org:ri-209DiVA, id: diva2:936177
Conference
The Tcbiomass 2013 conference; September 3–6, 2013, at Chicago, Illinois.
Available from: 2016-06-13 Created: 2016-06-13 Last updated: 2019-08-13Bibliographically approved

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Weiland, FredrikJohansson, Ann-Christine

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