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

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 conf...

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Bibliographic Details
Published in:Journal of natural gas chemistry 2009-12, Vol.18 (4), p.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: Article
Language:English
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
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Summary: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.
ISSN:1003-9953
DOI:10.1016/S1003-9953(08)60132-2