活性基质在降烯烃渣油裂化催化剂中的应用  

MODIFIED MATERIAL AS MATRICES OF OLEFIN REDUCE RFCC CATALYSTS

作　　者：沈志虹[1] 付玉梅[1] 李淑云[1] 

机构地区：[1]石油大学(北京)中国石油天然气集团公司催化重点实验室,北京102200

出　　处：《燃料化学学报》2003年第3期259-262,共4页Journal of Fuel Chemistry and Technology

摘　　要：研究了渣油裂化催化剂的基质改性对催化剂性能的影响。结果表明,经高温及酸处理后,高岭土的孔容、比表面及其表面酸性明显增加;对拟薄水铝石进行磷改性,可增加氧化铝的表面酸性中心数目,降低酸强度。用改性的高岭土和氧化铝作为降烯烃渣油裂化催化剂的活性基质,可提高催化剂的渣油裂化及氢转移、异构化活性,并减少催化剂上的积碳。This paper presents the influence of the modified matrices of RFCC catalysts on the acidity and activity The result shows that the surface area, pore volume and acidity of kaolin clay are all increased when it is baked and modified with acid It also shows that when aluminum oxide is modified with phosphorus, its acid site is increased but acid strength is weakened When these modified materials are used as the matrices of the olefinreduce residual oil cracking catalysts, the activity for cracking and hydrogentransfer as well as isomerization raise and the coke yield reduces

关 键 词：基质 改性 渣油裂化 降烯烃 

分 类 号：TE624.91[石油与天然气工程—油气加工工程]