Catalyst for hydrogenation and method for preparing same

Patent metadata

Field	Value
Publication number	US-11999911-B2
Application number	US-202017623306-A
Country	US
Kind code	B2
Filing date	Jun 25, 2020
Priority date	Jun 28, 2019
Publication date	Jun 4, 2024
Grant date	Jun 4, 2024

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

The invention claimed is:

1. A catalyst for hydrogenation, comprising:
50-80 parts by weight of nickel oxide;
0.01-5 parts by weight of copper oxide and 10-50 parts by weight of a silica carrier, wherein a particle size distribution of the catalyst has D 10 of 2 μm or more, D 50 of 5-7 μm, and D 90 of 15 μm or less, and
wherein a ratio between a weight of the copper oxide to a weight sum of the nickel oxide and the copper oxide is 0.01-2.0:100.

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

3. The catalyst of claim 2 , 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.

4. 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.

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

6. 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.

7. The catalyst of claim 1 , wherein the hydrocarbon resin comprises at least one selected from a hydrocarbon resin including C 5 fraction comprising dicyclopentadiene (DCPD), and a hydrocarbon resin including C 9 fraction.

8. 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.

9. 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,
wherein a particle size distribution of the catalyst has D 10 of 2 μm or more, D 50 of 5-7 μm, and D 90 of 15 μm or less, and
wherein the nickel is included in an amount of 50 parts by weight or more, and
nickel oxide and copper oxide are included, wherein a ratio between a weight of the copper oxide to a weight sum of the nickel oxide and the copper oxide is 0.01-2.0:100.

10. The method of claim 9 , further comprising, after the activating step, passivating the catalyst.

11. The method of claim 10 , 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.

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

13. A hydrogenation method for a hydrocarbon resin comprising contacting a hydrocarbon resin with hydrogen in the presence of a catalyst prepared by the method of claim 9 .

14. The hydrogenation method of claim 13 , wherein the hydrocarbon resin comprises at least one selected from a hydrocarbon resin including C 5 fraction comprising dicyclopentadiene (DCPD), 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

• B01J37/18

  with gases containing free hydrogen · CPC title

• B01J37/0236

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

• B01J35/633

  less than 0.5 ml/g · CPC title

• B01J35/393

  Metal or metal oxide crystallite size · CPC title

• B01J35/45

  Nanoparticles · CPC title