PVA by-product methyl acetate hydrogenation catalyst

A hydrogenation catalyst for catalytic hydrogenation of PVA (polyvinyl alcohol) production by-product methyl acetate to produce ethanol is provided; copper and nickel are used as compound active components, one or more of alkaline earth metals (magnesium, calcium and the like), transition metals (iron, cobalt and zinc), and rare earth metals (such as lanthanide elements) are used as cocatalysts, and aluminum oxide is used as a carrier; the content of the compound active components accounts for 25-72% of the total mass, the content of the cocatalyst components accounts for 3-45% of the total mass, and the content of the carrier accounts for 5-30% of the total mass. According to the catalyst, the methyl acetate conversion rate is more than or equal to 99%, the ethanol selectivity is more than or equal to 99%, the catalyst total life reaches 8000 hours or per ton of the catalyst can be used for produce more than 5000 tons of ethanol, and the catalyst has good industrialized application prospects.