Synthesis and catalytic evaluation of CoMo/SBA-15 catalysts for oxidative removal of dibenzothiophene from a model diesel

被引：26

作者：

Ramos, J. M. ^{[1
]}

Wang, J. A. ^{[1
]}

Chen, L. P. ^{[1
]}

Arellano, U. ^{[1
]}

Ramirez, S. P. ^{[1
]}

Sotelo, R. ^{[1
]}

Schachat, P. ^{[2
]}

机构：

[1] Inst Politecn Nacl, ESIQIE, Mexico City 07738, DF, Mexico

[2] Inst Mexicano Petr, Direcc Invest, Mexico City 07730, DF, Mexico

来源：

CATALYSIS COMMUNICATIONS | 2015年 / 72卷

关键词：

Dibenzothiophene; Oxidative desulfurization; CoMo/SBA-15; H2O2; DEEP HDS; DESULFURIZATION; H2O2; SUPPORT; SYSTEM; FUELS; ACID; MO;

D O I：

10.1016/j.catcom.2015.09.007

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：

Three CoMo/SBA-15 catalysts were synthesized using impregnation method with different Co and Mo contents at a Mo/Co molar ratio 15. Their catalytic properties were evaluated for dibenzothiophene (DBT) oxidation in a model diesel fuel. Molybdate microctystals and 3-CoMoO4 were formed in each catalyst, the former was chiefly responsible for the DBT oxidation, while the latter was an inactive phase. Increasing the CoMo metal loading may inhibit beta-CoMoO4 formation but increases the amount of Co-modified molybdate microcrystals, and thus, improves significantly the catalytic activity. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：57 / 62

页数：6

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