Effect of O_2 and H_2O on the tri-reforming of the simulated biogas to syngas over Ni-based SBA-15 catalysts  

作　　者：Daoan Sun Xiujin Li Shengfu Ji Lingyan Cao 

机构地区：[1]State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China [2]Department of Environmental Engineering, Beijing University of Chemical Technology, Beijing 100029, China

出　　处：《Journal of Natural Gas Chemistry》2010年第4期369-374,共6页天然气化学杂志（英文版）

基　　金：supported by the National Basic Research Program of China(Project No.2005CB221405);the National "863" Project of China (No.2006AA10Z425);the Beijing Natural Science Foundation (Project No: 8062023)

摘　　要：A series of Ni/SBA-15 catalysts with Ni contents from 7.5 wt% to 15 wt% were prepared by impregnation method.The effect of O2 and H2O on the combined reforming of the simulated biogas to syngas was investigated in a continuous flow fixed-bed micro-reactor.The stability of the catalyst was tested at 800 ？C.The results indicated that 10wt%Ni/SBA-15 catalyst exhibited the highest catalytic activities for the combined reforming of the simulated biogas to syngas.Under the reaction conditions of the feed gas molar ratios CH4/CO2/O2/H2O = 2/1/0.6/0.6,GHSV = 24000 ml·gcat^-1·h^-1 and the reaction temperature T = 800 ℃,the conversions of CH4 and CO2 were 92.8% and 76.3%,respectively,and the yields of CO and H2 were 99.0% and 82.0%,respectively.The catalytic activities of the catalyst did not decrease obviously after 100 h reaction time on stream.A series of Ni/SBA-15 catalysts with Ni contents from 7.5 wt% to 15 wt% were prepared by impregnation method.The effect of O2 and H2O on the combined reforming of the simulated biogas to syngas was investigated in a continuous flow fixed-bed micro-reactor.The stability of the catalyst was tested at 800 ？C.The results indicated that 10wt%Ni/SBA-15 catalyst exhibited the highest catalytic activities for the combined reforming of the simulated biogas to syngas.Under the reaction conditions of the feed gas molar ratios CH4/CO2/O2/H2O = 2/1/0.6/0.6,GHSV = 24000 ml·gcat^-1·h^-1 and the reaction temperature T = 800 ℃,the conversions of CH4 and CO2 were 92.8% and 76.3%,respectively,and the yields of CO and H2 were 99.0% and 82.0%,respectively.The catalytic activities of the catalyst did not decrease obviously after 100 h reaction time on stream.

关 键 词：BIOGAS REFORMING SYNGAS oxygen steam Ni-based catalyst SBA-15 

分 类 号：TQ426.82[化学工程] TE624.92[石油与天然气工程—油气加工工程]