ISOPROPYLATION OF BENZENE OVER LARGE-PORE ZEOLITES - ACTIVITY AND DEACTIVATION STUDIES

被引：45
|
作者：
PRADHAN, AR
RAO, BS
机构：
[1] Catalysis Group, National Chemical Laboratory, Pune
来源：
JOURNAL OF CATALYSIS | 1991年 / 132卷 / 01期
关键词：
D O I：
10.1016/0021-9517(91)90248-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Both LaHY and H-mordenite catalysts show good initial activity for isopropylation of benzene, but deactivate within a span of 8-10 h. The product distribution and deactivation pattern were observed to be different. Coking induces shape-selective phenomenon in mordenite. The amount of coke, loss in acidity, and void volume of coked samples suggest that deactivation of faujasite is due to acid-site poisoning while deactivation of mordenite is caused by pore blocking. Inc. © 1991.
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页码：79 / 84
页数：6
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