Catalyst for hydrogenation reaction and method for producing same

Patent metadata

Field	Value
Publication number	US-2022001360-A1
Application number	US-201917292010-A
Country	US
Kind code	A1
Filing date	Oct 29, 2019
Priority date	Dec 28, 2018
Publication date	Jan 6, 2022
Grant date	—

Abstract

The present invention can facilitate the reduction of nickel by using copper as an accelerator when a hydrogenation catalyst including nickel is produced by using a deposition-precipitation (DP) method. According to an embodiment of the present invention, provided is a catalyst for a hydrogenation reaction that includes 40-80 parts by weight of nickel as a catalyst active component, 0.01-5 parts by weight of copper as an accelerator, and 10-30 parts by weight of a silica support based on 100 parts by weight of the entire catalyst. Therefore, although a high content of nickel is supported, the catalyst has a small crystal size of an activated metal and a high degree of dispersion and provides excellent hydrogenation activity. In addition, silica with a controlled particle size distribution is used as a support, so that the produced catalyst also has a uniform particle size distribution and is suppressed from being smashed at a high-speed rotation in the hydrogenation reaction, thereby providing a high filtration rate.

First claim

1 . A catalyst for a hydrogenation reaction, comprising 40-80 parts by weight of nickel as a catalyst active component, 0.01-5 parts by weight of copper as an accelerator, and 10-30 parts by weight of a silica support based on 100 parts by weight of the entire catalyst.

2 . The catalyst of claim 1 , wherein a crystal size of the nickel is 3-8 nm.

3 . The catalyst of claim 1 , wherein the catalyst has a degree of reduction of 80% or more after removal of a passivation layer.

4 . The catalyst of claim 1 , wherein an average particle size (d 50 ) of the catalyst is 3-10 μm, and a volume ratio of the catalyst having a particle size of 1 μm or less is 10% or less.

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

6 . The catalyst of claim 1 , wherein the silica support has a specific surface area of 200-400 m 2 /g and an average particle size of 3-10 μm.

7 . A method for producing a catalyst for a hydrogenation reaction, the method comprising:
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 25-250; 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 0.01-5; preparing a third solution by dispersing a silica support in the second solution so that a weight concentration (g/L) of silica in a solution is 10-40; adding the third solution to a precipitation container, stirring the third solution, and heating the third solution to a temperature of 50-120° C.; adding a pH control agent to the heated third solution, causing the nickel and copper precursors to form a precipitate, and depositing the precipitate on the solid silica support; washing and filtering the supported catalyst and drying the supported catalyst at 100-200° C. for 5-24 hours; sintering the dried catalyst in air at a temperature of 200-500° C.; and activating the sintered catalyst by reducing the sintered catalyst at a temperature of 200-500° C. in a hydrogen atmosphere.

8 . The method of claim 7 , further comprising passivating the activated catalyst.

9 . The method of claim 8 , wherein the passivating is performed by passivating the activated catalyst with a nitrogen mixed gas including 0.1-20% oxygen.

10 . The method of claim 7 , further comprising passivating the activated catalyst by depositing the activated catalyst in a solution including a hydrocarbon resin.

11 . The method of claim 7 , wherein the precipitation is performed at pH 7-9.

12 . A method for hydrogenating a hydrocarbon resin, wherein the hydrocarbon resin is brought into contact with hydrogen in the presence of the catalyst produced by the method of claim 7 .

Assignees

• Hanwha Solutions Corp

Inventors

• Jeon Bong Sik
• Lee Yong Hee
• Park Woo Jin
• Jung Eui Geun
• Myeong Wan Jae
• Han Joung Woo

Classifications

• C08F8/04

  Reduction, e.g. hydrogenation · CPC title

• B01J37/18

  with gases containing free hydrogen · CPC title

• B01J37/0236

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

• B01J37/009

  Preparation by separation, e.g. by filtration, decantation, screening · CPC title

• B01J37/06

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