The aim of this work is to show recent trends in the preparation of hydrocracking catalysts. Two strategies were pursued in order to improve the middle distillate selectivity of supported transition metal sulfide/zeolite catalysts): (1) depositing a metal phase inside the zeolite crystals (or at least on their outer surface), (2) opening diffusion pathways within the zeolite crystals by desilication. Both methods lead to a significant gain in activity and/or selectivity. A new methodology for screening hydrocracking catalysts is also presented.

Hydrocracking of vacuum gas oils: Recent trends in catalyst development

246th National Meeting (2013)

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