Oxidation reactivities of organic sulfur compounds in fuel oil using immobilized heteropoly acid as catalyst

Abstract

Heteropoly acid of Keggin structure phosphotungstic(HPW) and phosphomolybdic(HPMo) were chemically anchored to the modified SBA-15 channel. The materials were used as catalyst for oxidative desulfurization of organic sulfur compounds including benzothiophene (BT), dibenzothiophene (DBT) and 4,6-dimethydibenzothiophene (4,6-DMDBT). The experimental results show that the catalysts are efficient and reusable, the catalytic activity is hardly reduced even in the 5th cycle of use.

Keywords

SBA-15 / phosphotungstic / phosphomolybdic / oxidation desulfurization

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