Affiliation:
1. Lomonosov Moscow State University, Department of Petroleum Chemistry and Organic Catalysis,
Faculty of Chemistry
Abstract
The possibility of using molybdenum-containing catalysts based on SBA-15 synthesized in one stage by the co-condensation method were used in the process of oxidation of various organosulfur compounds for the first time. The composition and structure of the obtained materials are reliably confirmed by a set of modern physicochemical methods: low-temperature nitrogen adsorption/desorption, XRD, TEM, IR spectroscopy. The effect of the amount of the active phase and influence of the conditions of the process on the oxidation of a model mixture of dibenzothiophene was investigated. It was shown that obtained catalyst continues to retain its activity at least during 4 cycles without significant loss of activity. The synthesized catalyst containing 5 wt % of molybdenum makes it possible to achieve 100% conversion of dibenzothiophene in 5 minutes under the following conditions: 0.5 wt % 5%Mo-SBA-15, H2O2 : S = 6 : 1 (mol.), T = 80°C.
Publisher
The Russian Academy of Sciences