Synthesis and catalytic activity of vanadium phosphorous oxides systems supported on silicon carbide for the selective oxidation of n-butane to maleic anhydride
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VPO catalysts supported on silicon carbide were prepared using the solvothermal method. A decrease the reaction temperature by 70 °C under application of SiC, prepared from sucrose and fumed silica, as a support for an active VPO phase compared to a bulk VPO catalyst prepared under similar synthesis conditions was demonstrated. A twofold increase of the productivity towards maleic anhydride was reached. The higher specific reaction rate of n-butane oxidation over prepared supported VPO-SiC systems compared to the bulk VPO catalyst was shown. Use of an environmentally safe support allowed to reduce an amount of active vanadium-containing phase, and an application of the solvothermal method decreased the synthesis duration and an amount of organic solvent compared to the traditional approaches to the synthesis of VPO systems.
KeywordsVPO catalyst n-Butane oxidation Maleic anhydride Silicon carbide Solvothermal method Productivity
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The authors declare that they have no conflict of interest.
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