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High-temperature air and steam gasification of densified biofuels
KTH, Superseded Departments, Metallurgy.
KTH, Superseded Departments, Metallurgy.
KTH, Superseded Departments, Metallurgy.
2004 (English)In: BIOMASS BIOENERG, 2004, Vol. 27, no 6, 563-575 p.Conference paper, Published paper (Refereed)
Abstract [en]

An experimental study was carried out to investigate gasification of densified biofuels using highly preheated air and steam as a gasifying agent. Preheat of air and steam is realised by means of the newly developed high-cycle regenerative air/steam preheater. Use of highly preheated feed gas provides additional energy into the gasification process, which enhances the thermal decomposition of the gasified solids. For the same type of feedstock the operating parameters, temperature, composition and amount of gasifying agent, were varied over a wide range. Results of experiments conducted in. a high-temperature air/steam fixed bed updraft gasifier show the capability of this technology of maximising the gaseous product yield as a result of the high heating rates involved, and the efficient tar reduction. Increase of the feed gas temperature reduces production of tars, soot and char residue as well as increases heating value of the dry fuel gas produced. Overall, it has been seen that the yield and the lower heating value of the dry fuel gas increase with increasing temperature.

Place, publisher, year, edition, pages
2004. Vol. 27, no 6, 563-575 p.
Series
Biomass & bioenergy, ISSN 0961-9534
Keyword [en]
high-temperature gasification, fixed bed, updraft, pellets
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-25396DOI: 10.1016/j.biombioe.2003.08.015ISI: 000224440600007Scopus ID: 2-s2.0-4344599227OAI: oai:DiVA.org:kth-25396DiVA: diva2:357805
Conference
1st World Conference on Pellets Stockholm, SWEDEN, SEP 09-13, 2002
Note
QC 20101020. Available from: 2010-10-20 Created: 2010-10-20 Last updated: 2011-10-20Bibliographically approved
In thesis
1. High temperature air/steam gasification of biomass in an updraft fixed bed batch type gasifier
Open this publication in new window or tab >>High temperature air/steam gasification of biomass in an updraft fixed bed batch type gasifier
2005 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2005. 100 p.
Keyword
Materials science, Materialvetenskap
National Category
Materials Engineering
Identifiers
urn:nbn:se:kth:diva-224 (URN)91-7178-067-X (ISBN)
Public defence
2005-05-30, sal D3, Lindstedtsvägen 5, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20101020Available from: 2005-05-26 Created: 2005-05-26 Last updated: 2010-10-20Bibliographically approved

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