Catalytic perfomance of rhodium chalcogen halides and rhodium chalcogenides over silica supports in methane oxidative carbonylation

• Published in: Journal of natural gas chemistry Vol. 18; no. 4; pp. 399 - 406
• Main Authors: Volkov, S.V., Kosmambetova, G.R., Kharkova, L.B., Shvets, O.V., Yanko, O.G., Gritsenko, V.I., Strizhak, P.E.
• Format: Journal Article
• Language: English
• Published: Chengdu Elsevier B.V 01-12-2009; Dalian Institute of Chemical Physics; V.I.Vernadskii Institute of General and Inorganic Chemistry of the Ukrainian National Academy of Sciences,pr.Palladina 32/34,Kiev,03680,Ukraine%L.V.Pisarzhevsky Institute of Physical Chemistry of the Ukrainian National Academy of Sciences,pr.Nauki 31,Kiev,03028,Ukraine
• Subjects: Applied sciences; catalysts; Energy; Exact sciences and technology; Fuel processing. Carbochemistry and petrochemistry; Fuels; Gas processing; methane oxidative carbonylation; rhodium chalcogen halides; silica supports; 催化剂; 卤化物; 氧化羰化; 氧族元素; 硅材料; 硫族化合物; methane oxidative carbonylation; rhodium chalcogen halides; catalysts; silica supports; Methane; Carbonylation; Rhodium compound; Oxidation; Catalyst activity; Supported catalyst
• ISSN: 1003-9953
• DOI: 10.1016/S1003-9953(08)60132-2

The gas phase methane oxidative carbonylation was studied in the presence of molecular oxygen over silica materials including their mechanical mixtures with rhodium chalcogen chlorides obtained in non-aqueous inorganic media. The formation of Rh4SCl7, Rh4S9Cl2, Rh4SesCl3 and Rh3Se3Cl solids was confirmed by elemental analysis, IR absorption spectroscopy, XPS and X-ray diffraction. Silica, vanadium-, and molybdenum-containing mesoporous molecular sieves have been used as supports. It was found that productivity of oxygenates （methanol, methyl acetate and acetic acid） depends mainly on the method of the catalyst preparation and the type of the support.