Liquid-phase transalkylation of diethylbenzenes with benzene over β-zeolite:: effect of operating parameters on the distribution of the products

被引：16
|
作者：
Cavani, F
Corazzari, M
Bencini, E
Goffredi, G
机构：
[1] Univ Bologna, Dipartimento Chim Ind & Mat, I-40136 Bologna, Italy
[2] EniChem SpA, I-46100 Mantova, Italy
来源：
APPLIED CATALYSIS A-GENERAL | 2002年 / 226卷 / 1-2期
关键词：
transalkylation; diethylbenzene; ethylbenzene; beta-zeolite;
D O I：
10.1016/S0926-860X(01)00880-8
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 transalkylation of diethylbenzenes with benzene was studied in the liquid phase, using a p-zeolite as the heterogeneous catalyst. The effects of the main reaction parameters: temperature, contact time and feed composition on catalytic performance were investigated to (i) determine relationships between the formation of the different products, and (ii) find the best reaction conditions. Ethylbenzene was found to form via both the direct reaction of diethylbenzenes transalkylation with benzene, and consecutive reaction on 1, l-diplienylethane. In addition, ethylbenzene undergoes consecutive cracking reactions, which are favored at temperatures above 270 degreesC. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：31 / 40
页数：10
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