Catalytic activities and properties of AlHMS mesoporous molecular sieves

被引：18

作者：

Yue, YH ^{[1
]}

Sun, Y ^{[1
]}

Xu, Q ^{[1
]}

Gao, Z ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 1998年 / 175卷 / 1-2期

关键词：

AlHMS molecular sieves; stability; textural properties; acidity; catalytic activity;

D O I：

10.1016/S0926-860X(98)00209-9

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：

AlHMS with Si/Al ratio in the range 4.6-31.0 were synthesized by the neutral templating route using hexadecylamine as template. Similar to AlMCM-41, AlHMS molecular sieves have high surface area, uniform mesopores and high thermal stability. Acid sites are generated directly by calcining the as-synthesized materials. The acid strengths of the weak and strong acid sites on AlHMS are close to those on KY zeolite, but the number of acid sites is less. AlHMS catalysts are active for acid-catalyzed reactions, such as cumene cracking and isopropanol dehydration. They are more catalytically active than HY for 1,3,5-tri-tert-butylbenzene dealkylation due to facilitation of the diffusion of the bulky reactant and product molecules. AlHMS-supported NiO catalysts show good activities for thiophene hydrodesulfurization. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：131 / 137

页数：7

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