Deactivation of zeolite catalyst in aniline alkylation

被引：0
|
作者：
Pillai, RBC [1 ]
机构：
[1] Indian Inst Technol, Dept Chem, Chennai 600036, India
来源：
JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 1999年 / 76卷 / 08期
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D O I：
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Deactivation of zeolite used in aniline alkylation by 2-propanol in vapour phase under atmospheric pressure has been investigated. Blockage of pores and coverage of surface of zeolite by carbonaceous materials and poisoning of active sites by nitrogenous compounds are causes of deactivation. The coke deposit is more in Ce-form than that in Nn-form. This is attributed to the relatively higher acidity of Ce-Y form. Deactivated catalyst is regenerated by heating it in a current of air at 500 degrees for 8 h. Regenerated catalyst shows improved activity.
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页码：403 / 405
页数：3
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