Regeneration of WOx/Al2O3 and MoOx/Al2O3 catalyst used during skeletal isomerization of 1-butene

被引：3

作者：

Benitez, VM ^{[1
]}

Fígoli, NS ^{[1
]}

机构：

[1] CONICET, UNL, FIQ, INCAPE,Inst Invest Catalisis & Petroquim, RA-3000 Santa Fe, Argentina

来源：

CATALYSIS COMMUNICATIONS | 2003年 / 4卷 / 11期

关键词：

WOx/Al2O3; MoOx/Al2O3; deactivation; regeneration; n-butene isomerization;

D O I：

10.1016/j.catcom.2003.08.005

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 regeneration of W and Mo supported on gamma and alpha-thetaAl(2)O(3) catalysts used during 1-butene skeletal isomerization, was studied. The regenerated catalysts were characterized by several techniques and the results compared with those of the fresh catalysts. It was found that it is necessary a 15 h at 465 degreesC treatment to completely eliminate coke on W/gammaA and Mo/gammaA, both catalysts recovering the initial activity and selectivity. Using this procedure, the properties of the catalysts were not modified. The same treatment did not allow the activity recovery in W/alpha-thetaA, due to differences in the nature of coke, that is aromatic or pregraphitic, and could not be totally removed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：571 / 577

页数：7

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