Study on Biomass Gasification Coupling with Catalytic Cracking of Tar
Biomass gasification coupling with catalytic cracking of tar was carried out in the installation consisting of a fluidized bed reactor and a two-stage fixed bed reactor. The feedstock was sawdust and the cracking catalyst included calcined dolomite and the nickel-based reforming catalyst. The results showed that the mole ratio of H2/CO (H/C) in the gas product is increased rapidly with the increase of gasification temperature and the weight ratio of S/B (steam to biomass) in the feedstock, but catalytic cracking temperature had little effect on H2/CO. Meanwhile, different kinds of catalysts would cause different ratios of H/C. By employing two-stage catalytic cracking, i.e., calcined dolomite in stage Ⅰ, and nickel-based catalyst in stage Ⅱ, the conversion of tar cracking reached up to 96.70％, the yield of H2 and CO increased. Moreover, it slowed down the deactivation of nickel-based reforming catalyst and extended its service life.
biomass tar gasification catalytic cracking
Qing-li Xu Hong-yu Li Wei Qi Ting-chen Li Su-Ping Zhang Zheng-wei Ren Yong-jie Yan
Research Center for Biomass Energy,East China University of Science and Technology,Shanghai,200237
国际会议
广州
英文
966-971
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）