Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study

被引：8

作者：

Lu, Chuanzhu ^{[1
]}

Fu, Hui ^{[1
]}

Li, Huipeng ^{[1
]}

Zhao, Hua ^{[1
]}

Cai, Tianfeng ^{[1
]}

机构：

[1] Liaoning Shihua Univ, Sch Petrochem Engn, Fushun 113001, Peoples R China

来源：

FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING | 2014年 / 8卷 / 02期

关键词：

composite molecular sieve; oxidation desulfuration; extraction; kinetic; MESOPOROUS SILICA; PERFORMANCE; SBA-15; SO42-/ZRO2/MCM-41; ADSORPTION; COPOLYMER; CATALYSTS; TRIBLOCK; GASOLINE; FUELS;

D O I：

10.1007/s11705-014-1420-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

ZSM-5/SBA-15 composite molecular sieves were synthesized using post-synthesis method and characterized by X-ray diffraction and N-2 adsorption-desorption. The oxidative-extration desulfurization of model oil was investigated by using hydrogen peroxide as the oxidant, tetrabutyl ammonium bromide as phase transfer catalyst, dimethyl sulfoxide as extractant, and Zr-ZSM-5/SBA-15, Ag-ZSM-5/SBA-15, Ce-ZSM-5/SBA-15 as catalyst. Under the optimal conditions, the desulfurization rate decreases in the order: Zr-ZSM-5/SBA-15 > Ce-ZSM5/SBA-15> Ag-ZSM-5/SBA-15. The highest desulfurization rate is 84.53% under the catalysis of Zr-ZSM-5/SBA-15. Kinetics analysis shows that the reaction is pseudo-first-order with the activation energy of 44.23 kJ/mol.

引用

页码：203 / 211

页数：9

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