Hydrogenation reaction catalyst and preparation method therefor

Patent metadata

Field	Value
Publication number	US-2021002403-A1
Application number	US-201816956929-A
Country	US
Kind code	A1
Filing date	Dec 20, 2018
Priority date	Dec 29, 2017
Publication date	Jan 7, 2021
Grant date	—

Abstract

Provided are a hydrogenation reaction catalyst and a preparation method therefor, and more particularly, to a hydrogenation reaction catalyst including sulfur as a promoter, thereby selectively hydrogenating an olefin by changing a relative hydrogenation rate of the olefin and an aromatic group during a hydrogenation reaction of an unsaturated hydrocarbon compound containing an aromatic group, and a preparation method therefor.

First claim

1 . A hydrogenation reaction catalyst comprising nickel, a promoter, and a carrier,
wherein the promoter comprises copper and sulfur, the carrier is at least one selected from silica and alumina, and the nickel has an average crystal size of 1 nm to 10 nm and an average particle size of 1 μm to 20 μm.

2 . The hydrogenation reaction catalyst of claim 1 , wherein a content of the nickel is in a range of 40 parts by weight to 80 parts by weight based on 100 parts by weight of a total composition,
a content of the copper is in a range of 0.1 parts by weight to 5 parts by weight based on 100 parts by weight of the total composition, and a mole ratio of the sulfur to the nickel is in a range of 1:0.02 to 1:0.2.

3 . The hydrogenation reaction catalyst of claim 1 , wherein a hydrogen adsorption amount per weight of the nickel is in a range of 0.01 mmol-H 2 /g-Ni to 0.5 mmol-H 2 /g-Ni.

4 . A method for preparing a hydrogenation reaction catalyst, the method comprising:
(a) producing a primary solution by dissolving nickel, copper compound, and a carrier powder in distilled water; (b) adding the primary solution to a precipitation vessel and stirring and heating the primary solution to 50° C. to 120° C.; (c) producing a secondary solution by injecting a solution containing a pH regulator and sulfur into the heated primary solution for 30 minutes to 2 hours, and forming a precipitate on which Ni is supported through precipitation; (d) producing a dried product by washing, filtering, and heating the precipitate at 100° C. to 200° C. for 5 hours to 24 hours; and (e) producing a reduced product by reducing the dried product in a hydrogen atmosphere at a temperature of 200° C. to 500° C.

5 . The method of claim 4 , further comprising, in the step (d), calcining the dried product in an air atmosphere at a temperature of 200° C. to 500° C.

6 . The method of claim 4 , further comprising, in the step (e), producing a powder catalyst by passivating the reduced product with a nitrogen mixed gas containing 0.1% to 20% oxygen.

7 . The method of claim 4 , wherein the precipitation is performed at a pH of 7 to 9.

8 . A hydrogenation method characterized by selectively hydrogenating an olefin of an unsaturated hydrocarbon compound containing an aromatic group by using the hydrogenation reaction catalyst prepared according to claim 4 .

9 . A selectively hydrogenated petroleum resin prepared by the hydrogenation method according to claim 8 .

10 . The selectively hydrogenated petroleum resin of claim 9 , wherein the petroleum resin has an APHA value of 30 or less.

11 . The selectively hydrogenated petroleum resin of claim 9 , wherein the petroleum resin has an aromatic/olefin hydrogenation ratio of 0.1 to 1.0.

Assignees

• Hanwha Solutions Corp

Inventors

• Jeon Bong Sik
• Myeong Wan Jae
• Park Woo Jin
• Jung Eui Geun

Classifications

• C07C2527/02

  Sulfur, selenium or tellurium; Compounds thereof · CPC title

• C10G45/48

  containing nickel or cobalt metal, or compounds thereof · CPC title

• C10G45/36

  containing nickel or cobalt metal, or compounds thereof · CPC title

• C07C5/03

  of non-aromatic carbon-to-carbon double bonds · CPC title

• B01J37/08

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