期刊
FUEL PROCESSING TECHNOLOGY
卷 86, 期 4, 页码 375-389出版社
ELSEVIER
DOI: 10.1016/j.fuproc.2004.05.008
关键词
biomass gasification; Fischer-Tropsch fuels; exergy analysis
An exergy analysis of Biomass Integrated Gasification-Fischer-Tropsch process is presented. The process combines an air-blown, atmospheric gasifier, using sawdust as feedstock, with a Fischer-Tropsch reactor and a steam-Rankine cycle for electricity generation from the Fischer-Tropsch tail gas. Results show that the rational (exergetic) efficiency is 36.4%, consisting of 34.5% efficiency to Fischer-Tropsch diesel and wax, and 1.9% efficiency to electricity. The largest exergy losses take place in biomass gasification and in generation of electricity from the Fischer-Tropsch tail gas. Recommendations are given for process improvements, which increase the rational efficiency to 46.2%. (C) 2004 Elsevier B.V. All rights reserved.
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