Xylene isomerization in a ZSM-5/SS membrane reactor

被引：27
|
作者：
Tarditi, Ana M. [1 ]
Horowitz, G. I.
Lombardo, E. A. [1 ]
机构：
[1] UNL CONICET, Inst Invest Catalisis & Petroquim, FIQ, RA-3000 Santa Fe, Argentina
来源：
CATALYSIS LETTERS | 2008年 / 123卷 / 1-2期
关键词：
xylene isomerization; membrane reactor; zeolite membrane;
D O I：
10.1007/s10562-008-9442-4
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：
A membrane reactor containing different types of ZSM-5/porous SS membranes was used to perform the xylene isomerization reaction. The parent Na-ZSM-5 layer was synthesized by secondary growth on top of porous stainless steel tubes. The xylene isomerization reaction was carried out at different temperatures in the membrane reactor and in a fixed-bed reactor of identical geometry for comparison. Two different kinds of membranes were prepared by ion exchange: a Pt/H-ZSM-5 catalytic membrane and two Ba-ZSM-5 composites with different Ba2+ concentration. The p-xylene production using 100% exchanged Ba-membrane was about 28% higher than the fixed-bed reactor at 370 degrees C, when m-xylene was fed.
引用
收藏
页码：7 / 15
页数：9
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