ALKYLATION OF BENZENE WITH ISOPROPANOL OVER ZEOLITE-BETA

被引：101

作者：

REDDY, KSN ^{[1
]}

RAO, BS ^{[1
]}

SHIRALKAR, VP ^{[1
]}

机构：

[1] NATL CHEM LAB,CATALYSIS GRP,POONA 411008,MAHARASHTRA,INDIA

来源：

APPLIED CATALYSIS A-GENERAL | 1993年 / 95卷 / 01期

关键词：

ISOPROPYLATION OF BENZENE; PROPYL BENZENE; SELECTIVITY (CUMENE); ZEOLITE-BETA;

D O I：

10.1016/0926-860X(93)80196-W

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：

The isopropylation of benzene with isopropanol/propene over Al-, B- and Ga-beta zeolites is reported. The influence of the SiO2/Al2O3 ratio, space velocity, temperature and reactants mole ratios are discussed. The selectivity to cumene is maximum at lower SiO2/Al2O3 ratio and at lower space velocity as well as higher benzene-to-isopropanol ratio. At higher temperatures, cumene isomerizes to n-propyl benzene. Zeolite beta does not exhibit any product shape selectivity among the di-isopropyl benzene isomers. The activity and selectivity of H-Al-beta is compared with other large pore zeolites such as H-mordenite and H-ZSM- 12. The stable activity and higher selectivity over zeolite beta can be attributed to it's highly silicious nature and interconnecting channel system.

引用

页码：53 / 63

页数：11

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