摘要
对合成γ－丁内酯Ｃｕ－Ｚｎ－Ａｌ－Ｏ催化剂进行了ＸＲＤ研究，关联催化剂活性评价结果，表明：加入Ａｌ元素，有助于提高催化剂的活性．反应活性组分是微晶Ｃｕ０．Ｃｕ０聚集是催化剂失活的原因之一．该Ｃｕ－Ｚｎ－Ａｌ－Ｏ催化剂宜采用直接还原方式，在２４０℃，通入Ｈ２还原２ｈｒ进行活化．
According to the activity measurement results,the study on the XRD of Cu Zn Al O γ Butyrolactone synthesis catalyst show that (a) Adding Al element can increase the catalyst activity,(b) Cu 0 is thought to be the active center of the catalyst.It is one reason of the catalyst deactivation that Cu 0 aggregation,(c) The Cu Zn Al O catalyst should be directly reducted by hydrogen gas at 240℃ through 3 hours.
