EFFECT OF HYDROTHERMAL TREATMENT ON THE ACIDITY, ACTIVITY AND OLEFIN SELECTIVITY OF ULTRASTABLE Y ZEOLITE.

被引：0
|
作者：
Li Diongfan [1 ]
Tao Longxiang [1 ]
Zhan Yingzhen [1 ]
Li Shiyao [1 ]
Zheng Lubin [1 ]
机构：
[1] Acad Sinica, China, Acad Sinica, China
来源：
Shiyou Xuebao/Acta Petrolei Sinica | 1987年 / 3卷
关键词：
CATALYSTS; -; Activity; ZEOLITES; Testing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of hydrothermal treatment on the activity and acidity of zeolites, apparent activation energy of n-hexane cracking, and hydrogen transfer reaction have been studied by means of n hexane cracking with pyridine poisoning over USY, using pulse catalystic chromatograph branch-flow and TPD technique. The regularity of olefin formation have also been investigated. A close relationship exists between the activity of n-hexane cracking and the acidic property. It has been found that the hydrothermal stability and catalytic cracking activity of REH-USY after high temperature treatment are much higher than those of H-USY.
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页码：56 / 64
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