Steam and air fed biomass gasification: Comparisons based on energy and exergy

被引:99
作者
Hosseini, Mehdi [1 ]
Dincer, Ibrahim [1 ]
Rosen, Marc A. [1 ]
机构
[1] Univ Ontario Inst Technol, Fac Engn & Appl Sci, Oshawa, ON L1H 7K4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Hydrogen production; Gasification; Biomass; Energy; Exergy; Efficiency; HYDROGEN-PRODUCTION;
D O I
10.1016/j.ijhydene.2012.02.115
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Results are reported of thermodynamic analyses of a biomass gasification unit in which sawdust is the biomass feed and the gasifying medium is either air or steam. Energy and exergy analyses are performed for the system and each of its components. A parametric study reveals the effect of design and operating parameters on the system's performance and energy and exergy efficiencies. The results show that the adiabatic temperature of biomass gasification significantly changes with the type of the gasifying medium. In addition, the exergy and energy efficiencies are observed to be higher when air is the gasifying medium rather than steam, while the system performance and exergy efficiencies are dependent on the moisture content of the feed biomass. The results are significant because they quantify the strong dependence of biomass gasification, which can be used for syngas or hydrogen production, on moisture content, and gasifying medium. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:16446 / 16452
页数:7
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