CATALYTIC HYDROPROCESSING OF CHLORINATED BENZENES

被引：95

作者：

HAGH, BF

ALLEN, DT

机构：

[1] Department of Chemical Engineering University of California, Los Angeles

来源：

CHEMICAL ENGINEERING SCIENCE | 1990年 / 45卷 / 08期

基金：

美国国家科学基金会;

关键词：

chlorobenzenes; dechlorination; Hydroprocessing;

D O I：

10.1016/0009-2509(90)80160-G

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The catalytic hydrodechlorination reactions of hexachlorobenzene and all of its dechlorinated intermediates were examined in a differential microflow reactor. A presulfided NiMo/γAl2O3 catalyst and a reaction temperature of 325°C were used in all of the experiments. The dechlorination rate data and product selectivities for hexachlorobenzene and other chlorinated benzenes demonstrate that reaction steps frequently involve removal of multiple chlorine atoms. Not all possible intermediates are formed; all of the observed intermediate dechlorination steps proceed at comparable rates. A reaction mechanism based on an arenium ion intermediate is proposed to explain observed selectivities. © 1990.

引用

页码：2695 / 2701

页数：7