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本发明涉及一种醋酸加氢制乙醇催化剂及其制备方法,主要解决现有技术中催化剂选择性低、寿命短、稳定性较差的问题。本发明通过采用一种醋酸加氢制乙醇催化剂,包括组分a、b、c、d和载体;所述组分a选自钙、钾、钠、钡、锶或其氧化物中的至少一种;所述组分b选自镍、钴、铁、铜、铼或其氧化物中的至少一种;所述组分c选自锡、铟、锗、铅或其氧化物中的至少一种;所述组分d选自铂、钯、钌、铑或其氧化物中的至少一种;所述载体选自二氧化硅、二氧
The invention relates to a catalyst for hydrogenation of acetic acid to ethanol and a preparation method thereof, and mainly solves the problems of low selectivity, short service life and poor stability in the prior art. The present invention provides an ethanol catalyst for hydrogenation of acetic acid, comprising components a, b, c, d and a support; the component a is selected from at least one of calcium, potassium, sodium, barium, strontium or an oxide thereof ; The component b is at least one selected from the group consisting of nickel, cobalt, iron, copper, rhenium or an oxide thereof; the component c is at least one selected from the group consisting of tin, indium, germanium, lead or an oxide thereof ; The component d is at least one selected from the group consisting of platinum, palladium, ruthenium, rhodium or oxide thereof; the carrier is selected from the group consisting of silicon dioxide,