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.

引用

页码：56 / 64

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