Low acidity ZSM-5 supported iron catalysts for Fischer-Tropsch synthesis

Low acidity ZSM-5-supported iron catalysts were synthesized for use in Fischer-Tropsch conversion. Low acidity ZSM-5 was particularly chosen for its lower activity in respect to zeolite-acid catalyzed reactions (i.e. hydrocracking) which might lead to the lower selectivity for the light hydrocarbon and high selectivity for gasoline range components and for its high stability. Selective surface dealumination was also applied to zeolite and the resulting zeolite was used as a support for the catalyst in order to enhance its selectivity for gasoline.