Study of industrial and laboratory regeneration of Pt-Re/Al2O3 catalysts

被引：0

作者：

Pieck, CL ^{[1
]}

Vera, CR ^{[1
]}

Parera, JM ^{[1
]}

机构：

[1] Consejo Nacl Invest Cient & Tecn, INCAPE, FIQ UNL, Inst Invest Catalisis & Petroquim, RA-3000 Santa Fe, Argentina

来源：

CATALYST DEACTIVATION 2001, PROCEEDINGS | 2001年 / 139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：

The activity, selectivity and stability of naphtha reforming catalysts, fresh (without use) and regenerated, were studied comparatively. Laboratory scale accelerated deactivation tests were used for simulating real industrial deactivation conditions. It was found that the Pt-Re/Al2O3 catalysts that were burnt (to eliminate coke) and rejuvenated (redispersed with chlorine) had higher stability in n-heptane conversion and higher selectivity to toluene than fresh catalysts, due to an improvement of the metal function properties produced after the rejuvenation step. This result was verified by performing dehydrogenation of cyclohexane on a Pt-Re/Al2O3 catalyst subjected to several oxidation-reduction treatments and on fresh and regenerated catalysts. The n-C-5 isomerization test reaction revealed that the acid functions of regenerated and fresh catalysts are similar.

引用

页码：279 / 286

页数：8

共 23 条

[1] Dehydrogenation of cyclohexane on catalysts containing noble metals and their combinations with platinum on alumina support [J].