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Alkali catalyzed gasification of solid biomass: influence on fuel conversion and tar/soot reduction
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-8235-9839
Luleå University of Technology.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0002-3687-6173
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-1806-4187
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2016 (English)In: Proceedings of the 24th European Biomass Conference and Exhibition, Amsterdam: ETA Florence Renewable Energies , 2016, 533-536 p.Conference paper, Published paper (Refereed)
Abstract [en]

Based on char gasification experiments in an isothermal thermogravimetric analyzer, a suitable concentration of alkali salt (K2CO3) was chosen for impregnation due to almost five-fold increase in gasification reactivity and relatively low amount of carbon leaching during impregnation. Furthermore, an optimum method for wet alkali impregnation was proposed based on the several tests performed by varying temperature and time. To study the catalytic effect on tar and soot yield, untreated and impregnated woody biomass were gasified under entrained flow condition between 900 oC and 1200 oC. Impregnation leads to 70% lower tar yield from gasification around 1000 oC and 1100 oC. The lowest amount of soot was detected for the same temperature range whereas the soot yield was one order of magnitude higher for untreated biomass. For tar, this influence became insignificant at a higher temperature (1200 oC). This defines the suitable temperature range for alkali catalyzed gasification without the loss of catalytic activity.

Place, publisher, year, edition, pages
Amsterdam: ETA Florence Renewable Energies , 2016. 533-536 p.
Series
EUBCE Proceedings, ISSN 2282-5819
National Category
Energy Engineering Bioprocess Technology
Research subject
Energy Engineering; Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-29853Scopus ID: 2-s2.0-85019705426Local ID: 376c38d2-6cfb-4b5a-98cc-149509c1e39aOAI: oai:DiVA.org:ltu-29853DiVA: diva2:1003079
Conference
European Biomass Conference and Exhibition : 06/06/2016 - 09/06/2016
Note

Godkänd; 2016; 20160727 (kawkir)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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