还原态Mo-Ni-K/C催化剂上CO加氢合成低碳混合醇  

THE SYNTHESIS OF MIXED ALCOHOL FROM SYNGAS OVER REDUCED Mo Ni K/C CATALYSTS

作　　者：冯丽娟[1,2] 李先国[1,2] 

机构地区：[1]青岛海洋大学化学化工学院 [2]西弗吉尼亚大学化工系

出　　处：《催化学报》1999年第1期63-66,共4页

基　　金：美国能源部资助项目

摘　　要：ＣＯ加氢合成低碳混合醇已成为Ｃ１化学的一个重要分支．目前用于这一过程的催化剂大都是改性的甲醇合成、ＦＴ合成或二者组合的催化剂．自从８０年代中期美国Ｄｏｗ化学品公司和联合碳化物公司首先发现ＭｏＳ２基催化剂具有优良的催化合成醇反应性能和良好的抗硫中毒能...C supported K promoted Mo Ni catalysts, prepared by incipient wetness impregnation technique followed by reduction in H 2, are found to be very active for the selective production of C 1 to C 7 alcohols from syngas. Ethanol and propanol are apparently the major products for one of the optimized catalysts. The production rate to total alcohols can reach as high as 470 g/(h·kg) at p =5 0 MPa, GHSV=6 m 3/(h·kg) and T ≈643 K, with a CO 2 free carbon atom selectivity to total alcohols of about 60% and a C 2+ alcohols to methanol molar ratio of 3 5. The catalytic performance, in terms of both activity and selectivity for mixed alcohol synthesis, is much better than that of the pre sulfided sample. The alcohol products obey Anderson Schultz Flory distribution, with the exception of methanol whose amount is obviously lower than the predicted value.

关 键 词：低碳醇 一氧化碳 加氢 还原态 催化剂 钼基 

分 类 号：O643.36[理学—物理化学] O623.41[理学—化学]