Effects of the metal-metal interactions on the stability of Pt-Re/Al2O3-Cl reforming catalysts

被引：0
|
作者：
Barbier, J
Marecot, P
Pieck, CL
机构：
[1] Univ Poitiers, Catalyse Chim Organ Lab, CNRS, UMR 6503, F-86022 Poitiers, France
[2] INCAPE, RA-3000 Santa Fe, Argentina
来源：
CATALYST DEACTIVATION 1997 | 1997年 / 111卷
关键词：
D O I：
暂无
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：
Bimetallic Pt-Re/Al2O3 catalysts were prepared by catalytic reduction (CR) of a Re salt on a monometallic Pt/Al2O3 catalyst using hydrogen as the reducing agent. The degree of interaction between Pt and Re was indirectly measured by the cyclopentane hydrogenolysis reaction. This interaction is enhanced for catalysts prepared by the CR method. A further calcination can destroy that strong interaction. The most beneficial effects of Re on the stability of Pt (lower coke deposition, lower sulfur coverage, lower toxicities of coke and sulfur) are obtained when Pt and Re are in close interaction.
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页码：327 / 334
页数：8
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