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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．
The X-ray diffraction of Cu-Zn-Al-O catalyst with γ-butyrolactone was carried out. The results of the catalyst activity evaluation showed that the addition of Al could improve the activity of the catalyst. The reactive component is microcrystalline Cu0. Cu0 aggregation is one of the reasons for catalyst deactivation. The Cu-Zn-Al-O catalyst should adopt the direct reduction mode, at 240 ℃, through H2 reduction 2hr activation.