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US 2022/0372380 A1Published application
Catalyst for hydrogenation and method for preparing same
AssigneeHanwha Solutions Corporation
InventorsWoo Jin PARK, Bong Sik JEON, Yong Hee LEE, Eui Geun JUNG
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Abstract
The present invention relates to a catalyst for hydrogenation and a method for preparing the same, and more specifically, provides a catalyst having improved activity by including copper and copper oxide as a promoter when a hydrogenation catalyst including nickel is prepared by using a deposition-precipitation (DP) method. Accordingly, a catalyst having high activity may be provided in a hydrogenation process of a hydrocarbon resin.
Claims17
A catalyst for hydrogenation, comprising:
- 0.01-5 parts by weight of at least one promoter selected from copper and copper oxide and 10-50 parts by weight of a silica carrier, based on 40-80 parts by weight of at least one active ingredient selected from nickel and nickel oxide.
A method for preparing a catalyst for hydrogenation, comprising the steps of:
- preparing a first solution by dissolving a nickel precursor in a solvent, so that a weight concentration (g/L) of nickel in a solution is 25 to 250;
- preparing a second solution by adding a copper precursor to the first solution, so that a weight concentration (g/L) of copper in a solution is 0.01 to 5;
- preparing a third solution by adding a silica carrier to the second solution and dispersing the silica carrier, so that a weight concentration (g/L) of silica in a solution is 10 to 50;
- adding the third solution to a precipitation container and stirring and heating the third solution to a temperature to 50-120° C.;
- adding a pH control agent to the heated third solution and depositing the nickel and copper precursors on the solid silica carrier forming a precipitation;
- washing and filtering the supported catalyst and drying the supported catalyst at 100-200° C. for 5 to 24 hours;
- calcining the dried catalyst at a temperature of 200-500° C. in air;
- and
- activating the calcined catalyst by reducing the calcined catalyst to a temperature of 200-500° C. in a hydrogen atmosphere.
6 more elements
Dependencies are inferred from the claim text.