Hydrodechlorination of 1,1,1-trichloroethane over silica-supported palladium catalyst

被引：14
|
作者：
Mori, T [1 ]
Kubo, J [1 ]
Morikawa, Y [1 ]
机构：
[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
来源：
APPLIED CATALYSIS A-GENERAL | 2004年 / 271卷 / 1-2期
关键词：
hydrodechlorination; Pd catalyst; trichloroethane; chloroethane; reaction mechanism;
D O I：
10.1016/j.apcata.2004.02.047
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：
Hydrodechlorination of 1,1,1-trichloroethane (CH3-CCl3) over silica-supported palladium catalyst was studied in a conventional flow reactor at atmospheric pressure. The main product was CH3-CH3 and its selectivity was in the range of 75-90% regardless of the reaction temperatures and the composition of reaction mixture. The rest was mainly occupied by partially hydrodechlorinated products, CH3-CHCl2 and CH3-CH2Cl, and a coupling product, n-C4H10. The contact time dependence of product distribution showed that the all products were formed by parallel reactions. A reaction mechanism is proposed, which involves rapid dechlorination of CH3-CCl3 into ethylidyne species. (C) 2004 Elsevier B.V. All rights reserved.
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页码：69 / 76
页数：8
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