Deactivation and regeneration of sulfur-poisoned supported palladium complexes

被引：12
|
作者：
Figoli, NS [1 ]
LArgentiere, PC [1 ]
机构：
[1] UNL,FIQ,CATEDRA QUIM INORGAN,RA-3000 SANTA FE,ARGENTINA
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1997年 / 122卷 / 2-3期
关键词：
sulfur resistance; palladium; supported complexes; regeneration;
D O I：
10.1016/S1381-1169(97)00027-7
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 deactivation by thiophene of the [PdCl2(CH3SOCH3)(2)] and the [PdCl2(NH2(CH2)(12)CH3)(2)] complexes supported on gamma-Al2O3, during the selective hydrogenation of styrene has been studied at 353 K and 10 kg cm(-2). Although both complexes are deactivated when the feed contains more than 300 ppm thiophene, the [PdCl2(NH2(CH2)(12)CH3)(2)] supported complex is more sulfur resistant. Thiophene is partially eliminated by hydrogen treatments at 353 K and 10 kg cm(-2) thereby indicating that thiophene has not substituted, at least totally, the complex ligands.
引用
收藏
页码：141 / 146
页数：6
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