BIODIESEL FUEL MANUFACTURING METHOD AND BIODIESEL FUEL COMPOSITION

摘要

Provided is a biodiesel fuel manufacturing method which enables selective hydrogenation from a polyunsaturated fatty acid alkyl ester to a monounsaturated fatty acid alkyl ester while controlling the formation of trans fats in order to manufacture a biodiesel fuel with superior oxidation stability and low-temperature fluidity. Also disclosed is a biodiesel fuel composition. The biodiesel fuel manufacturing method uses hydroprocessing of oils and fats which have undergone transesterification, and/or fatty acid alkyl esters prepared from edible waste oils, and/or (2) fatty acid alkyl esters that have undergone fatty acid esterification in the presence of a hydrogenation catalyst containing at least one noble metal selected from the noble metals in groups 8-10 of the periodic table and in a hydrogen atmosphere at low pressure.