摘要
利用浸渍法,以γ-Al2O3为载体,K2WO4为活性组分,考察了不同K2WO4负载量对γ-Al2O3晶相组成、孔结构及催化性能的影响。采用XRD和BET等手段对催化剂的晶相组成和孔结构特征进行了分析表征,催化剂于甲醇-硫化氢体系进行催化性能评价。研究结果表明,不同K2WO4负载量对γ-Al2O3晶相组成、孔结构及催化性能具有较大的影响;以γ-Al2O3为载体,活性组分K2WO4负载质量分数6%时,制得K2WO4(6%)/γ-Al2O3催化剂比表面积215.412 m2·g-1、孔容0.6345 cm3·g-1、CH3SH选择性和收率分别为达90.12%和72.65%。
Using y-Al2O3 as catalyst carrier, K2WO4 as active component, phase composition, pore structure and catalytic performance ofγ-Al2O3 prepared with different loadings of K2WO4 through impregnation method were studied. With the characterization methods of XRD and BET, phase composition and pore structure of catalysts were analyzed, catalytic performance were evaluated in methanolhydrogen sulfide system as well. Results showed that loadings of K2WO4 had great effects on phase composition, pore structure and catalytic performance. When using y-Al2O3 as catalyst carrier, and the loading content of active component K2WO4 was 6 %, K2WO4 （6 %）/γ-Al2O3 catalyst specific surface area was 215.412 m2·g-1, maximum pore volume was 0.6345 cm3-g·1, selectivity and yield of CH3SH got 90.12 % and 72.65 % respectively.
出处
《广东化工》
CAS
2015年第9期35-36,7,共3页
Guangdong Chemical Industry
基金
国家大学生创新基金项目[贵大国创字2013-014]
