文献类型：期刊文献

英文题名：Hydrogen Production via Catalytic Steam Reforming of Bio-oil Model Compound in a Two-stage Reaction System

作者：Ren, Z. -Z.[1];Lan, P.[1,2];Ma, H. -R.[1];Wang, T.[1];Shi, X. -H.[1];Zhang, S. -P.[1];Xu, Q. -L.[1];Yan, Y. -J.[1]

机构：[1]E China Univ Sci & Technol, Res Ctr Biomass Energy, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China;[2]Guangxi Univ, Guangxi Univ Nationalities, Key Lab Chem & Biol Transforming Proc, Sch Chem & Ecoengn, Nanning 530004, Peoples R China

年份：2014

卷号：36

期号：17

起止页码：1921

外文期刊名：ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

收录：;EI(收录号：20143017983749);WOS:【SCI-EXPANDED(收录号:WOS:000339003900010)】；

基金：Support for the study by the National Key Technology R&D Program (2014BAD02B03), the National Natural Science Foundation of China (51176049, 21376084), the Program for New Century Excellent Talents (NCET-11-0642) in University and the Fundamental Research Funds for the Central Universities is greatly appreciated.

语种：英文

外文关键词：bio-oil model; catalyst; hydrogen; steam reforming; two-stage

摘要：A mixture of several typical model compounds was chosen as the bio-oil model. Hydrogen production via catalytic steam reforming of model bio-oil in a two-stage reaction system was studied in this article. Quartz sand was used in the first-stage fluidized bed reactor for primary steam reforming, and Ni/modified dolomite was chosen as the catalyst in the second-stage fixed bed reactor for deep steam reforming. The main influential parameters, such as temperature, steam to carbon ratio, and weight hourly space velocity, were tested in this work. The optimum conditions on hydrogen production were obtained at 800 degrees C; steam and carbon mole ratio, 12; and weight hourly space velocity, 1 h(-1). In addition, there was a comparison between a two-stage reaction system and one-stage fixed bed reactor on the optimum condition. It was concluded that H-2 yield decreased 5.6% in the two-stage reaction system and 9.9% in the one-stage fixed bed reactor after 3 h reaction time; the maximum carbon deposition ratio was 1 and 0.44%, gaseous carbon selectivity dropped from 93.6 and 90.1% to 83.4 and 78.4%. The fresh catalyst as well as used catalyst were analyzed by scanning electron microscopy, which showed that the carbon deposition in the two-stage reaction system is less than that of the one-stage fixed bed reactor.