Gasification of biomass with CO^sub 2^ and H^sub 2^O mixtures in a catalytic fluidised bed

Steam can be fully or partially substituted by CO2 as a gasification agent. This substitution affects producer gas composition, char conversion and in-situ tar reforming. Here, wood chips were gasified in a spouting fluidised bed using silica sand and catalytic dolomitic lime as the bed material at...

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Bibliographic Details
Published in:Fuel (Guildford) 2017-12, Vol.210, p.605
Main Authors: Jeremiáš, M, Pohorelý, M, Svoboda, K, Manovic, V, Anthony, EJ, Skoblia, S, Beno, Z, Šyc, M
Format: Article
Language:English
Subjects:
Biomass
Carbon dioxide
Catalysis
Catalysts
Conversion
Gas composition
Gasification
Lime
Producer gas
Reforming
Silica
Silicon dioxide
Steam
Tars
Wood
Wood chips
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Summary:Steam can be fully or partially substituted by CO2 as a gasification agent. This substitution affects producer gas composition, char conversion and in-situ tar reforming. Here, wood chips were gasified in a spouting fluidised bed using silica sand and catalytic dolomitic lime as the bed material at 850 °C. The use of a gasifying agent composed of CO2 and H2O was compared to the use of CO2 or H2O alone. It was found that mixtures of CO2 and H2O as the gasifying agent improve char conversion, and that the combined gasification agents are very effective in ensuring the decomposition/destruction of tars when lime based materials are used in the fluidised bed.
ISSN:0016-2361
1873-7153