Selective Hydrogenation Catalyst based on Nickel-Zirconia and Its Use for Selective Hydrogenation of Di-olefins

摘要

PURPOSE: Provided are a selective hydrogenation catalyst and a selective hydrogenation process of diolefin compound using the catalyst. The above catalyst is tetragonal Ni/Zr type and is used in the selective hydrogenation of diolefin compounds that are contained in the carbohydrate mixtures into mono-olefin compounds. CONSTITUTION: The preparation method of the above catalyst comprises: 0.1-5wt.% (based on the hydrate) of Ni alone or having 0.1-5mol.% (based on Zr carrier) of a cocatalyst selected from Pd, Pt, Ag, Cu, Mo and B and its carrier of Zr alone or modified by one metal chosen from Ca, lanthanide metals such as Se and La, IIIB group metal(silicone) or IVB group metal(Al). The above selective hydrogenation is conducted in the temperature range of 80 to 250C at a pressure of 1 to 12 atm. and at space velocity of 4 to 12/h (based on the volume of liquid reactant).