Catalyst for hydrogenation reaction and method for producing same

Patent metadata

Field	Value
Publication number	US-2022362749-A1
Application number	US-202017623315-A
Country	US
Kind code	A1
Filing date	Jun 25, 2020
Priority date	Jun 28, 2019
Publication date	Nov 17, 2022
Grant date	—

Abstract

The present invention relates to a catalyst for a hydrogenation reaction and a method for producing the same, and more specifically, to a catalyst for a hydrogenation reaction, wherein the catalyst includes nickel oxide as an active ingredient and copper oxide and sulfur oxide as a promoter, and especially, can control a reduction degree value according to whether or not a passivation layer of a nickel metal is removed.

First claim

1 . A catalyst for a hydrogenation reaction, comprising:
0.05-10 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 10-50 parts by weight of a silica carrier as a support, based on 40-90 parts by weight of at least one active ingredient selected from nickel and nickel oxide, wherein a reduction degree of the active ingredient is controllable according to a removal of a passivation layer.

2 . The catalyst of claim 1 , wherein the reduction degree of the active ingredient is 90% or more when the passivation layer is removed, and is 45% or more when the passivation layer is not removed.

3 . The catalyst of claim 1 , wherein the reduction degree of the active ingredient is measured by hydrogen-temperature program reduction (H 2 -TPR).

4 . The catalyst of claim 1 , wherein the active ingredient has an average crystallite size of 3-10 nm.

5 . The catalyst of claim 1 , wherein the catalyst has an average particle size (d 50 ) of 3-10 μm, and a proportion of catalyst particles having a particle size of 1 μm or less in a particle size distribution is 0.1-10%.

6 . The catalyst of claim 1 , wherein the catalyst has a specific surface area of 150-300 m 2 /g.

7 . The catalyst of claim 1 , wherein the silica carrier has a specific surface area of 200-400 m 2 /g and a pore size of 3-10 nm.

8 . The catalyst of claim 1 , wherein the nickel forms a precipitate with the copper and the sulfur, is supported on the silica carrier, and is deposited and precipitated.

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 is at least one selected from a hydrocarbon resin including dicyclopentadiene (DCPD), a hydrocarbon resin including C5 fraction, and a hydrocarbon resin including C9 fraction.

11 . The catalyst of claim 9 , wherein the hydrocarbon resin has an APHA value of 30 or less after the hydrogenation reaction.

12 . The catalyst of claim 9 , wherein the hydrocarbon resin has an aromatic/olefin hydrogenation ratio of 0.1-1.0 after the hydrogenation reaction.

13 . A method for producing a catalyst for a hydrogenation reaction, the method comprising the steps of:
(a) preparing a first solution by dissolving 0.05-10 parts by weight of copper oxide and 10-50 parts by weight of a silica carrier in a solvent, based on 40-90 parts by weight of 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) preparing a second solution by mixing a pH control agent and 3-15 parts by weight of sulfur oxide, and adding the second solution dropwise to the heated first solution to prepare a precipitate; (d) washing and filtering the precipitate and drying the precipitate at a temperature of 100-200° C. for 5-24 hours to prepare a dried product; (e) calcining the prepared dried product in an air atmosphere; and (f) reducing the dried product in a hydrogen atmosphere at a temperature of 200-500° C. to prepare a reduced product.

14 . The method of claim 13 , further comprising, after the step (f), passivating the reduced product to form a passivation layer.

15 . The method of claim 14 , wherein the reduced product is passivated with a nitrogen mixed gas including 0.1-20% oxygen.

16 . The method of claim 14 , wherein the reduced product is passivated by depositing the reduced product in an organic solvent.

17 . The method of claim 14 , wherein, when the passivation layer is removed, the reduction degree of the nickel is 90% or more.

18 . The method of claim 14 , wherein, when the passivation layer is not removed, the reduction degree of the nickel is 45% or more.

19 . The method of claim 13 , wherein a pH in the step (c) of preparing the precipitate is 7-9.

20 . A hydrogenation method for contacting a hydrocarbon resin with hydrogen in the presence of the catalyst produced by the method of claim 13 .

21 . The hydrogenation method of claim 20 , 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.

Assignees

• Hanwha Solutions Corp

Inventors

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

Classifications

• B01J27/02

  Sulfur, selenium or tellurium; Compounds thereof · CPC title

• C10G2300/705

  Passivation · CPC title

• B01J23/72

  Copper · CPC title

• B01J23/755 Primary

  Nickel · CPC title

• C08F8/04

  Reduction, e.g. hydrogenation · CPC title