Alkaline-mediated mesoporous mordenite zeolites for acid-catalyzed conversions

被引：233

作者：

Groen, Johan C.

Sano, Tsuneji

Moulijn, Jacob A.

Perez-Ramirez, Javier

机构：

[1] Delft Univ Technol, NL-2628 BL Delft, Netherlands

[2] Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima 7398527, Japan

[3] Inst Chem Res Catalonia ICIQ, Tarragona 43007, Spain

[4] Catalan Inst Rec & Adv Studies ICREA, Barcelona 08010, Spain

来源：

JOURNAL OF CATALYSIS | 2007年 / 251卷 / 01期

关键词：

mesoporous mordenite; zeolites; porosity; desilication; alkylation; catalysis;

D O I：

10.1016/j.jcat.2007.07.020

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 preparation of mesoporous mordenite zeolite and its subsequent application in the liquid-phase alkylation of benzene with ethylene is discussed. Mesoporous mordenite was obtained by controlled silicon extraction on alkaline treatment of successfully synthesized high-silica mordenite zeolites with molar Si/Al ratios in the range of 20-30. Besides substantial mesoporosity development, the combined microporous and mesoporous zeolites show preserved Bronsted acidic properties, which are highly attractive when acid-catalyzed reactions are targeted. Catalytic testing of the mesoporous mordenite found superior performance in benzene alkylation due to the unique interplay between improved physical transport in the shortened micropores and the preserved high density of acid sites. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：21 / 27

页数：7

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