A kinetic study of in situ CO₂ removal gasification of woody biomass for hydrogen production

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• 作者：Shinji Fujimoto ; Takahiro Yoshida ; Toshiaki Hanaoka ; Yukihiko Matsumura ; Shi-Ying Lin ; Tomoaki Minowa ; Yoshiyuki Sasaki
• 关键词：In situ CO₂ removal gasification ; Hydrogen ; Biomass ; Kinetic constants
• 刊名：Biomass and Bioenergy
• 出版年：2007
• 期刊代码：3_09619534
• 类别：pw
• 出版时间：August 2007
• 卷：31
• 期：8
• 页码：556-562
• 文件大小：273 K

摘要

Woody biomass was gasified in steam at high temperature and pressure in the presence of a CO₂ sorbent using a batch reactor with capacity; this process is termed “in situ CO₂ removal gasification.” Gas, tar, and char were obtained as the products. The evolved CO₂ was completely absorbed in the sorbent, and no CO₂ was in gas phase. The product distribution at different reaction temperatures ranging from 473 to 923 K was examined to obtain fundamental information on the biomass degradation during the gasification. The reaction model proposed by Shafizadih and Chin was applied. The kinetic constants of the primary and secondary degradations were calculated from the product distribution.