Catalytic Oxidation of Benzothiophene and Dibenzothiophene in Model Light Oil Over Ti-MWW

Abstract

Abstract: An oxidative desulfurization process for model light oil over Ti-MWW was investigated. Benothiophene and dibenothiophene are oxidized to their corresponding sulfoxides and sulfones, which can be removed by extraction using acetontrile. The conversion of benothiophene and dibenothiophene is 100% and 95%, respectively, at 343 K. The effect of solvent was also studied. Under the same conditions, the conversion of benzothiophene in three solvents is in the order acetonitrile>methanol>water.

Key words: oxidative desulfurization, Ti-MWW, light oil, benzothiophene, dibenzothiophene

CHENG Shifu, LIU Yueming, GAO Jinbao, WANG Lingling, LIU Xiuli, GAO Guohua*, WU Peng, HE Mingyuan. Catalytic Oxidation of Benzothiophene and Dibenzothiophene in Model Light Oil Over Ti-MWW[J]. Chinese Journal of Catalysis, 2006, 27(7): 547-549.

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Catalytic Oxidation of Benzothiophene and Dibenzothiophene in Model Light Oil Over Ti-MWW

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