Promoter Effects of Ca, Mo, Al, ON Fe/MgO Catalyst on CO Hydrogenation

Abstract

Fe/MgO catalysts were promoted by CaO, Al2O3 and molibdena and the FT reaction was investigated. It was established that molybdena can be reduced during the reaction, alumina can form various phases either with magnesia or with iron oxide, while calcium oxide proved to be a fully inert promoter. Formation of alcohols started at a later stage of the reaction and the process probably proceeds on a metal/carbide/oxide interphase. © 1991 Elsevier Science Publishers B.V.