CO_2加氢合成甲醇的Cu－Zn－Al－O催化剂性能与焙烧温度的关系

Studies of the relation between the calcination temperature and the Cu-Zn-Al-O catalyst performance in synthesis methanol from carbon dioxide and hydrogen

采用ＸＲＤ、ＢＥＴ、脉冲Ｎ２Ｏ滴定和ＴＰＲ技术对催化剂表面性质和晶相组成进行了探讨。结果表明，Ａｌ２Ｏ３的加入有助于提高催化剂时热稳定性，焙烧温度不仅改变了催化剂的表面积、催化活性、晶相组成，而且也影响了催化剂的还原性质。

RD, BET, TPR and N2O pulse titrationhave been used to make exploration of the surface properties and the crystalline phase composition of the catalysts. It contributes to increasing the catalyst thermal stability to addAl2O3. The calcination temperature not onlychanges the catalyst surface area,the catalyticactivuity and the crystalline phase composition, but also affects the catalyst reducingproperty.