Catalyst for producing fatty alcohol through reduction of higher fatty acid ester, preparation and applications thereof

The invention relates to a catalyst for producing fatty alcohol through reduction of higher fatty acid ester, preparation and applications thereof, and belongs to the technical field of catalysts. According to the catalyst, high temperature calcinated nanometer alumina is adopted as a carrier, copper is adopted as an active component, zirconium oxide is adopted as an auxiliary agent, the copper oxide content of the catalyst is 15-65%, the zirconium oxide content is 1-15%, and the balance is alumina. According to the present invention, the catalyst adopts the high temperature calcinated nanometer alumina as the carrier, such that the catalyst has the properly-large surface area, the copper dispersity is increased, the catalyst activity is increased, and the temperature and the pressure during the hydrogenation process are reduced; with adjustment on the alumina calcination temperature, the catalyst acidity can be appropriately reduced, the catalyst selectivity can be adjusted, and the service life of the catalyst can be increased; and during the fatty alcohol preparation process through hydrogenation reduction of the higher fatty acid ester, the hydrogen-ester ratio is about 400, the ester conversion rate achieves more than 97.0%, and the fatty alcohol selectivity achieves more than 95%.