Catalyst for hydrogenation reaction and method for producing same

Patent metadata

Field	Value
Publication number	US-2025058303-A1
Application number	US-202418935644-A
Country	US
Kind code	A1
Filing date	Nov 3, 2024
Priority date	Jun 28, 2019
Publication date	Feb 20, 2025
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 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.

2 . The method of claim 1 , further comprising, after the step (f), passivating the reduced product to form a passivation layer.

3 . The method of claim 2 , wherein the reduced product is passivated with a nitrogen mixed gas including 0.1-20% oxygen.

4 . The method of claim 2 , wherein the reduced product is passivated by depositing the reduced product in an organic solvent.

5 . The method of claim 2 , wherein, when the passivation layer is removed, the reduction degree of the nickel is 90% or more.

6 . The method of claim 2 , wherein, when the passivation layer is not removed, the reduction degree of the nickel is 45% or more.

7 . The method of claim 1 , wherein a pH in the step (c) of preparing the precipitate is 7-9.

8 . A hydrogenation method for contacting a hydrocarbon resin with hydrogen in the presence of the catalyst produced by the method of claim 1 .

9 . The hydrogenation method of claim 8 , 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

• B01J37/0236

  Drying, e.g. preparing a suspension, adding a soluble salt and drying · CPC title

• B01J35/77

  Compounds characterised by their crystallite size · CPC title

• B01J37/18

  with gases containing free hydrogen · CPC title

• B01J37/08

  Heat treatment {(B01J37/0009, B01J37/0018 take precedence)} · CPC title

• B01J37/04

  Mixing {(B01J37/0009, B01J37/0018 take precedence)} · CPC title