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CATALYTIC REDUCTION OF TAR/CH4 BY AN INTERNAL REFORMER IN A DFB GASIFIER
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (Bioenergy - gasification)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (Bioenergy - gasification)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (Bioenergy - gasification)
2014 (English)In: European Biomass Conference & Exhibition Proceedings, 2014, p. 620-625Conference paper, Published paper (Other academic)
Abstract [en]

An internal reformer is developed for in-situ catalytic reforming of tar and methane (CH4) in allothermal gasifiers. Reduction of tars and CH4 in the syngas is a challenge for commercialization of biomass fluidised-bed gasification technology towards advanced automotive fuel production. This paper presents an initial study on the internal reformer operated with and without Ni-catalytic pellets in the Mid Sweden University (MIUN) DFB (Dual Fluidised Bed) gasifier, by evaluation of the syngas composition and tar/CH4 content. The novelty with the application of Ni-catalyst in this paper is the selected location where intensive gas to catalytic-material and bed-material contacts improve the reforming reactions. It can be concluded that the reformer with Ni-catalytic pellets clearly gives a higher H2 content together with lower CH4 and tar contents in the syngas than the reformer without Ni-catalytic pellets. The gravimetric tar content decreases down to 5 g/m3 and the CH4 content down below 6% in the syngas. The tar content will be decreased further to lower levels, with increased gas contact to the specific surface area of the catalyst and increased catalyst surface-to-volume ratio. The new design in the MIUN gasifier increases the gasification efficiency, suppresses the tar generation and upgrades the syngas quality.  

Place, publisher, year, edition, pages
2014. p. 620-625
Keywords [en]
Biomass Gasification, Syngas Cleaning, Tar Reduction, Methane Reforming, Tar-cracking Catalyst, Dual Fluidised Bed
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-23248DOI: 10.5071/22ndEUBCE2014-2AV.2.13ISI: 000351053500114ISBN: 978-88-89407-52-3 (print)OAI: oai:DiVA.org:miun-23248DiVA, id: diva2:756383
Conference
22nd EU BC&E 2014 – Hamburg, Germany 23-26 June 2014
Projects
Bioenergy - gasificationAvailable from: 2014-10-17 Created: 2014-10-17 Last updated: 2016-12-16Bibliographically approved

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Publisher's full texthttp://www.etaflorence.it/proceedings/

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Göransson, KristinaSöderlind, UlfZhang, Wennan

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