Selectivity to cumene in the alkylation of benzene with isopropanol on a MCM-41/γ-Al2O3 catalyst

被引：31

作者：

Medina-Valtierra, J

Zaldivar, O

Sanchez, MA

Montoya, JA

Navarrete, J

de los Reyes, JA

机构：

[1] Univ Autonoma Zacatecas, Fac Ciencias Quim, Zacatecas 98000, Mexico

[2] Inst Mexicano Petr, Mexico City 07730, DF, Mexico

[3] Univ Autonoma Metropolitana Iztapalapa, Mexico City 09340, DF, Mexico

来源：

APPLIED CATALYSIS A-GENERAL | 1998年 / 166卷 / 02期

关键词：

benzene isopropylation; cumene selectivity; MCM-41; aluminosilicate; MCM-41/gamma-Al2O3; catalyst;

D O I：

10.1016/S0926-860X(97)00280-9

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：

Alkylation of benzene with isopropanol to produce cumene was investigated using a MCM-41 aluminosilicate as catalyst. The MCM-41/gamma-Al2O3 catalyst, activated by means of a Liquid extraction method, mainly contained strong Lewis acid sites. After the activity of the composite catalyst was stabilized, it was observed that, in the isopropylation of benzene, cumene was the major product. The high cumene selectivity could be due to the low acid site concentration in the MCM-41 material, and the rapid diffusion of cumene in the broad channels of this mesoporous framework. (C) 1998 Elsevier Science B.V.

引用

页码：387 / 392

页数：6

共 17 条

[1] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].