期刊
THERMOCHIMICA ACTA
卷 519, 期 1-2, 页码 65-71出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2011.03.005
关键词
Biomass; Gasification; Autothermal gasifier; Thermodynamic evaluation; Energy; Exergy; Efficiency
资金
- Harbin Institute of Technology
- Institute of Combustion Engineering
- Science and Technology Planning Projects of Shenyang City [5096069900]
Biomass gasification with air in autothermal gasifiers is studied and compared with another fuel from thermodynamic aspect. The results indicate that the chemical energy values of product gases from biomass are 2.16-5.20 times as the corresponding physical energy values, while the chemical exergy values are 4.50-13.45 times as the corresponding physical exergy values. The energy and exergy efficiencies of biomass gasification are respectively in ranges of 52.38-77.41% and 36.5-50.19%, and mainly increase first and then decline when ER or gasification temperature increases. Higher carbon and hydrogen content in the ultimate analysis generates higher gaseous energy and exergy values, while results in lower energy and exergy efficiencies. Higher ash content makes biomass produce lower energy and exergy values/efficiencies. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
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