Catalyst for hydrogenation reaction and preparation method for same
AssigneeHanwha Solutions Corporation
InventorsWoo Jin Park, Bong Sik Jeon, Yong Hee Lee, Eui Geun Jung
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Abstract
According to the present invention, when preparing a hydrogenation catalyst including nickel as an active ingredient, the reduction of nickel can be facilitated by using copper and sulfur as a promoter. In particular, the present invention can provide a catalyst which, while having a high nickel content, includes sulfur oxide and nickel oxide in a particular range, and thus exhibits even higher selective reduction degree for olefins while having high activity of the catalyst.
Claims19
A catalyst for a hydrogenation reaction, comprising:
- 0.5-3 parts by weight of at least one first promoter selected from copper and copper oxide, 3-15 parts by weight of at least one second promoter selected from sulfur and sulfur oxide, and 10-40 parts by weight of a silica carrier, based on 40-90 parts by weight of at least one active ingredient selected from nickel and nickel oxide.
A method for preparing a catalyst for a hydrogenation reaction, the method comprising the steps of:
- (a) preparing a first solution by dissolving 0.01-5 parts by weight of at least one promoter selected from copper and copper oxide and 10-40 parts by weight of a silica carrier in a solvent, based on 40-90 parts by weight of at least one active ingredient selected from nickel and nickel oxide;
- (b) adding the first solution to a precipitation container and heating the first solution to a temperature of 60-100° C. while stirring;
- (c) after the heating, preparing a second solution by adding a pH control agent and 3-15 parts by weight of at least one promoter selected from sulfur and sulfur oxide to a precipitation container, and adding the second solution dropwise to the first solution to prepare a precipitate;
- (d) washing and filtering the precipitate and drying the precipitate to prepare a dried product;
- and
- (e) reducing the dried product in a hydrogen atmosphere at a temperature of 200-500° C. to prepare a reduced product.
Dependencies are inferred from the claim text.