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Chemistry for Sustainable Development

2015 year, number 4

Investigation of the Effect of Cation and Anion Modification on the Activity of CuZnAlO Catalyst in Oxidative Desulphurization of Dibenzothiophene in Model Diesel Fuel

S. A. YASHNIK1, A. V. SALNIKOV1, M. A. KERZHENTSEV1, Z. R. ISMAGILOV1,2, YAMING JIN3, and O. R. KOSEOGLU3
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
2Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Sovetskiy Pr.18, Kemerovo 650000 (Russia)
3Saudi Aramco Research and Development Center, Bldg. 9172, Dhahran 31311 (Saudi Arabia)
Keywords: дибензотиофен, десульфуризация, окислительное обессеривание, CuZnAlO-катализаторы, модифицирование, dibenzothiophene, desulphurization, oxidative desulphurization, CuZnAlO catalysts, modification

Abstract

The activity of catalyst samples obtained by means of modification of the CuZnAlO catalyst by various anion and cation additives was studied in oxidative desulphurization of dibenzothiophene dissolved in toluene for the purpose of searching for active catalysts for obtaining Diesel fuel with low sulphur content. It was demonstrated that the joint modification by anion additives BO2 and MoO42− promotes an increase in the efficiency of oxidative desulphurization of dibenzothiophene due to its oxidation by atmospheric oxygen in the vapour phase.