TPD study about the surface modification of some Ni/spinel catalysts in the hydrodechlorination of 1,2,4-trichlorobenzene. Influence on hydrogenation ability

被引：10
作者：
Cesteros, Y
Salagre, P
Medina, F
Sueiras, JE
机构：
[1] Univ Rovira & Virgili, Escola Tecn Super Engn, Tarragona 43005, Spain
[2] Univ Rovira & Virgili, Fac Quim, Tarragona 43005, Spain
来源：
CATALYSIS LETTERS | 2000年 / 67卷 / 2-4期
关键词：
cyclohexane; Ni/spinel; 1,2,4-trichlorobenzene; surface chlorination;
D O I：
10.1023/A:1019057219750
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：
NiAl2O4 supports and fresh and reactivated Ni/NiAl2O4 catalysts were tested in the gas phase hydrodechlorination of 1,2,4-trichlorobenzene. Fresh catalysts hydrogenate 1,2,4-trichlorobenzene to cyclohexane in the first 30 min of reaction at 523 K. An irreversible partial chlorination of the catalytic surface makes the hydrogenation of the aromatic ring difficult.
引用
收藏
页码：147 / 153
页数：7
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