Methanol dehydrogenation over Cu/SiO₂ catalysts
by Aleksey Vedyagin; Yulia Kotolevich; Pavel Tsyrul'nikov; Evgeny Khramov; Aleksander Nizovskii
International Journal of Nanotechnology (IJNT), Vol. 13, No. 1/2/3, 2016

Abstract: Methanol dehydrogenation was carried out over impregnated Cu/SiO₂ catalysts. It was found that the temperature of the catalyst's preliminary reduction by hydrogen could play a dramatic role. The interaction of copper ions with silica during the reduction at ≥300°C was observed. Metallic copper species obtained at low reduction temperature were found to be responsible for the methyl formate formation. The catalysts containing copper in the oxidised state showed low selectivity because of a side reaction of coke formation and were deactivated rapidly. The optimal temperature of reduction was found to be 250°C.

Online publication date: Thu, 04-Feb-2016

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