Catalyst for hydrogenation and method for preparing same

Patent metadata

Field	Value
Publication number	US-2022372380-A1
Application number	US-202017623306-A
Country	US
Kind code	A1
Filing date	Jun 25, 2020
Priority date	Jun 28, 2019
Publication date	Nov 24, 2022
Grant date	—

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.

First claim

1 . 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.

2 . The catalyst of claim 1 , wherein the nickel is included in an amount of 50 nickel by weight or more, and
the nickel oxide and the copper oxide are included, wherein the copper oxide is included in an amount of 0.01-2.0 parts by weight based on 100 parts by weight of all of the nickel oxide and the copper oxide.

3 . The catalyst of claim 1 , wherein the promoter further comprises 0.1-2 parts by weight of at least one selected from sulfur and sulfur oxide.

4 . The catalyst of claim 3 , wherein the sulfur oxide is included in an amount of 0.1-2.0 parts by weight based on 100 parts by weight of the nickel oxide.

5 . The catalyst of claim 1 , wherein a particle size distribution of the catalyst has an average particle size D 10 of 2 μm or more, D 50 of 5-7 μm, and D 90 of 15 μm or less.

6 . The catalyst of claim 1 , wherein the catalyst has a meso pore size of 4.5 nm or more in pore structure analysis using a nitrogen adsorption method, a BET specific surface area of 200 m 2 /g or more, and a cumulative BJH adsorption volume of 0.25 cm 3 /g or more.

7 . The catalyst of claim 1 , wherein the nickel has a crystallite size of 3-8 nm.

8 . The catalyst of claim 1 , wherein the silica carrier is a porous carrier having a specific surface area of 200-400 m 2 /g and a pore size of 10-30 nm.

9 . The catalyst of claim 1 , wherein a reactant in the hydrogenation reaction is a hydrocarbon resin.

10 . The catalyst of claim 9 , wherein the hydrocarbon resin comprises at least one selected from a hydrocarbon resin including dicyclopentadiene (DCPD), a hydrocarbon resin including C 5 fraction, and a hydrocarbon resin including C 9 fraction.

11 . The catalyst of claim 1 , wherein the catalyst is in at least one form selected from a powder form, a particle form, and a granular form.

12 . 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.

13 . The method of claim 12 , further comprising, after the activating step, passivating the catalyst.

14 . The method of claim 13 , wherein the catalyst is passivated with a nitrogen mixed including 0.1-20% oxygen, or is passivated by immersion in a solution including an organic solvent.

15 . The method of claim 12 , wherein the precipitation is formed at pH 7-9.

16 . A hydrogenation method for a hydrocarbon resin, which contacts a hydrocarbon resin with hydrogen in the presence of the catalyst prepared by the method of claim 12 .

17 . The hydrogenation method of claim 16 , wherein the hydrocarbon resin comprises at least one selected from a hydrocarbon resin including dicyclopentadiene (DCPD), a hydrocarbon resin including C5 fraction, and a hydrocarbon resin including C9 fraction.

Assignees

• Hanwha Solutions Corp

Inventors

• Park Woo Jin
• Jeon Bong Sik
• Lee Yong Hee
• Jung Eui Geun

Classifications

• B01J23/755 Primary

  Nickel · CPC title

• B01J27/02

  Sulfur, selenium or tellurium; Compounds thereof · CPC title

• C10G2300/705

  Passivation · CPC title

• C10G2300/703

  Activation · CPC title

• B01J37/088

  Decomposition of a metal salt · CPC title