Air Flow Gasification Behavior of Woody Biomass Powder in Down-Flow Reactor
High temperature air gasification process of woody biomass in an entrained down-flow gasifier was studied. Pulverized wood sieved under 60 meshes was supplied with the rate of 19 to 27 kg/h. The oxygen-carbon molar ratio (O/C) from 1.26 to 1.84 was employed to keep the maximum temperature over 1300K. The target of product gas was hydrogen and carbon monoxide in this process. Hydrogen and carbon monoxide contents in the yield gas were as much as 9％ and 19 ％ respectively at the O/C of 1.45 even though air was used as a gasifying agent and the yield gas was diluted by nitrogen. Carbon to gas conversion was almost 100％, and the tar generation was less than the detection limit. Cold gas efficiency reached 67 ％. Considering the scale-up effect based on the experimental result, the cold gas efficiency could be achieved 75 ％ when the feed rate of wood was around 1000 kg/h and the air ratio was 0.32 (O/C=1.32).
gasification wood powder biomass down-flow reactor high temperature
Yoshinori Itaya Nobusuke Kobayashi Miku Tanaka Shigenobu Hatano
Department of Chemical Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan
国际会议
第四届中日化工学术研讨会(The 4th Joint China/Japan Chemical Engineering Symposium)(CJCES)
成都
英文
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）