Effect of hydrogen treatment on the performance of Cr-ZSM-5 in deep oxidative decomposition of ethyl acetate and benzene in air

被引：13

作者：

Abdullah, AZ ^{[1
]}

Abu Bakar, MZ ^{[1
]}

Bhatia, S ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, Penang, Malaysia

来源：

CATALYSIS COMMUNICATIONS | 2003年 / 4卷 / 11期

关键词：

VOC; decomposition; Cr-ZSM-5; hydrogen reduction; coke;

D O I：

10.1016/j.catcom.2003.08.009

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 effect of hydrogen reduction on the activity of chromium exchanged ZSM-5 (Cr-ZSM-5) in the decomposition of ethyl acetate and benzene is reported. Reduction was performed at 400 degreesC for 1 h while activity study was done using a reactor operated between 100 and 500 degreesC and at GHSV of 32,000 h(-1). Reduction caused the migration of chromium to subsequently form chromia nanoparticles during VOC decomposition process leading to lower conversions. In line with the Mars-van Krevelen model, yield of carbon dioxide increased after reduction. Less coking tendency of reduced Cr-ZSM-5 was ascribed to lower conversion and higher yield of carbon dioxide. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：555 / 560

页数：6

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