含镍HZSM－5／Al_2O_3催化剂的水蒸气处理行为  

HYDROTHERMAL TREATMENT PERFORMANCE OF Ni-HZSM-5/Al_2O_3 CATALYST

作　　者：康小洪[1] 杜崇敬[1] 张崇礼 肖鸿瑞 

机构地区：[1]中国石化石油化工科学研究院

出　　处：《石油炼制与化工》1996年第9期36-39,共4页Petroleum Processing and Petrochemicals

摘　　要：以量热法、Ｘ射线衍射力手段，考察了以ＺＳＭ－５为酸性组分的Ｎｉ－ＨＺＳＭ－５／Ａｌ＿２Ｏ＿３催化剂在水蒸气处理后性能的变化。试验表明，在所考察的水蒸气处理条件范围内，催化剂的裂解活性随处理苛刻度的增大呈现先升后降的现象，其中以水蒸气处理温度的影响最大，水蒸气处理的压力也有明显的影响。X-ray diffraction and micro-calorimertry were used to examine the changes of acidity and cracking activity of Ni-HZSM-5/Al2O3 catalyst after hydrothermal treatment. The experiment proved that the cracking activity of the catalyst changed with operation seventy, increasing to maximum with subsequent decrease. Among factors affecting the cracking activity of the catalyst, hydrothermal treatingtemperature is the most important. The treating pressure has also an obvious effecton the result.

关 键 词：分子筛 催化剂 水蒸气处理 临氢降凝 

分 类 号：TE624.433[石油与天然气工程—油气加工工程] TE624.99