不同分子筛上正辛烷反应性能的研究

以正辛烷为模型化合物，在连续微型反应器装置一上考察了负载金属Ni的HzsM-5、HFER、SAPO-11、Hp和HY一系列分子筛催化剂的异构化和芳构化性能。试验到果表明，S议Al比不同而孔结构相同的N训HZSM-5具有相近的反应产物分布，液收和lI$氢异构化选择性随着S“Al比的增大而增加;孔径越大，分子筛的异构化和芳构化选择性越高，N订HY催化剂的异构化和芳构化选择性分别为41.83%和3.4%。高S订Al比的N议HzSM-5催化剂具有较高的反应活性和抗结焦能力，同时具有相时较好的异构化和芳构化性能。

RESEARCH OF THE REACTIVE PERFORMANCE OF N-OCTANE ON DIFF'ERENT ZEOLITE CATALYSTS

The hydroisomerization and aromatization properties of a se-ries of different zeolite catalysts, primary Ni/HZSM-5，Ni/HFER, Ni/SAPO-11，Ni/Hpand Ni/HY were compared in a micro-reactor by using of n-octane as probing molecular. Re-sups show that Ni/HZSM-5 zeolite with the same pore structureshave the approximate product distribution, with the increase of Si/Al ratio, the liquid product yield and hydroisomerization se-lectivity have been improved. The large pore zeolite have more superior isomeric product selectivity than medium pore and small pore zeolite, the isomeric and aromatic selectivity of Ni/HY cat-alyst are 41. 83% and 3. 4% respectively. However, the Ni/HZSM-5 catalyst with a higher Si/Al ratio has higher activity and excellent capability to retard the formation of coke, at the same time it has the optimum isomerization and aromatization performance.