DEVELOPMENT OF CATALYTIC TAR DECOMPOSITION IN AN INTERNALLY CIRCULATING FLUIDIZED-BED GASIFIER

摘要：

Biomass gasification in an Internally Circulating Fluidized-bed Gasifier (ICFG) using Ni/Al2O3 as tar cracking catalyst is studied at low temperature. Reaction conditions of the catalyst bed are discussed, including catalytic temperature and steam ratio. High energy efficiency and hydrogen-rich, low-tar product gas can be achieved in a properly designed multi-stage gasification proccess, together with high-performance catalyst. In addition, considering the economical feasibility, a newly-developed Ni-loaded brown coal char is developed and evaluated as catalyst in a lab-scale fluidized bed gasifier with catalyst fixed bed. The new catalyst shows a good ability and a hopeful prospect of tar decomposition, gas quality improvement and catalytic stability.

关键词： Biomass gasification Internally Circulating Fluidized-bed Gasifier Catalyst Tar decomposition Ni-loaded brown coal char

作者: Xianbin Xiao Duc Dung LE Kayoko Morishita Liuyun LI Takayuki Takarada

作者单位: Gunma Industry Support Organization, Maebashi 371-0854, Japan Department of Chemical and Environment Department of Chemical and Environmental Engineering, Gunma University, Kiryu 376-8515, Japan Gunma Industry Support Organization, Maebashi 371-0854, Japan

会议类型: 国际会议

会议名称: 第20届国际流化床燃烧会议(20th International Conference on Fluidized Bed Combustion)

会议地点: 西安

会议语种:英文

页码: 747-753

在线出版日期: 2009-05-18（万方平台首次上网日期，不代表论文的发表时间）