摘要
研究了ＣＯ２加氢合成甲醇催化剂中载体Ａｌ２Ｏ３的作用。活性评价、ＴＰＲ、ＴＰＤ、ＴＰＳＲ等实验表明，Ａｌ２Ｏ３不但起骨架作用，而且能分散催化剂的活性组分，使ＣＯ２的吸附和转化率提高。铜基催化剂掺中入适量的Ａｌ２Ｏ３能提高ＣＯ２加氢合成甲醇的选择性，过量的Ａｌ２Ｏ３会降低甲醇的收率。
The effect of Al 2O 3 is studied on hydrogenation of CO 2 to methanol over a CuO/ZnO/Al 2O 3 catalyst.Based on the GC, TPR, TPD, and TPSR results, it is concluded that Al 2O 3 can disperse the active components of the catalyst and hence promote adsorption and conversion of CO 2. Addition of a right amount of Al 2O 3 can enhance the selectivity to methanol, whereas too much Al 2O 3 will decrease the yield of methanol.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
1997年第5期13-16,共4页
Natural Gas Chemical Industry
