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Further development and testing of a method for characterization of particles from biomass gasification using a laboratory scale gasifier
Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Institutionen för teknik och design. Bioenergiteknik.
Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för teknik, TEK. (Bioenergiteknik)
2008 (engelsk)Inngår i: 16th European Biomass Conference & Exhibition: From research to industry and markets, 2008, s. 1037-1040Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In the present study, a laboratory scale gasifier was used to further develop and test a method for characterization of particles from biomass gasification. It was found that when an inlet temperature to the bed of activated carbon, used for tar adsorption, of 200ºC was used, particles with low volatility were produced since they vaporized when heated to 300ºC, indicating condensation of tars. When an inlet temperature of 300ºC was used, the particles were stable when heated to 300ºC. This indicates that the tars had been kept in vapour phase and been adsorbed in the carbon bed. The particles were further heated in steps of 100ºC to 700ºC in order to study the change in particle size distribution and total concentration. The particles were stable up to 400ºC, indicating low tar content. The total particle concentration decreased between 400-700ºC probably due to oxidation of carbonaceous material, for example soot, or volatilisation of alkali chlorides. The particles present after heating to 700ºC were most likely inorganic ash. The concentration of fine particles decreased more than the concentration of coarse particles when heated to 700ºC. This could be due to a higher content of carbonaceous material in the fine particles and more ash-rich coarse particles.

sted, utgiver, år, opplag, sider
2008. s. 1037-1040
Emneord [en]
gasification, aerosols
Forskningsprogram
Teknik, Bioenergiteknik
Identifikatorer
URN: urn:nbn:se:vxu:diva-3679ISBN: 978-88-89407-58-1 (tryckt)OAI: oai:DiVA.org:vxu-3679DiVA, id: diva2:203636
Tilgjengelig fra: 2008-12-08 Laget: 2008-12-08 Sist oppdatert: 2010-09-03bibliografisk kontrollert

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