Progress in the catalysts for preparation of bio-fuels through hydrogenation of animal fats and vegetable oils

With global crude oil resources declining day by day and the increasingly stringent environmental requirements,the research direction of preparation of bio-fuels through catalytic hydrogenation of animal fats and vegetable oils has attached much attention.However,the catalyst was critical factor for whether the conversion of animal fats and vegetable oils to bio-fuels was economic and efficient.Therefore,the focus of the direction was to develop highly active and highly selective catalysts.In this paper,the catalysts for preparation of bio-fuels through hydrogenation of animal fats and vegetable oils were reviewed,the advantages and disadvantages of different catalysts were summarized,what noble metal catalysts can build the multifunctional catalysts catalyzing reaction through the reaction pathway of hydrogenation,decarboxylation,cracking,isomerization was considered,as well as the effective way and program for further designing the multifunctional catalysts with high hydrodeoxygenation(HDO)activity and selectivity of light alkanes and isomerization of alkanes,such as modifying carrier,altering precious metal loading patterns and modifying pores,were proposed.