Nickel catalyst for hydrogenation reaction and manufacturing method therefor

Patent metadata

Field	Value
Publication number	US-12269017-B2
Application number	US-202017623310-A
Country	US
Kind code	B2
Filing date	Jun 25, 2020
Priority date	Jun 28, 2019
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

The present invention relates to a nickel catalyst for a hydrogenation reaction and a manufacturing method therefor, and relates to a nickel catalyst added in a hydrogenation reaction for improving a color of a hydrocarbon resin. The catalyst according to the present invention has a small crystallite size and improves dispersibility, while having high nickel content, and thus can provide high activity in hydrogenation reactions.

First claim

The invention claimed is:

1. A catalyst for a hydrogenation reaction, comprising:
0.1-3 parts by weight of at least one promoter selected from sulfur and sulfur oxide and 10-50 parts by weight of a silica carrier as a support, based on 40-80 parts by weight of at least one active ingredient selected from nickel and nickel oxide.

2. The catalyst of claim 1 , wherein the catalyst comprises 50 parts by weight or more of the active ingredient, and comprises 0.1-3.0 parts by weight of the at least one promoter based on 100 parts by weight of the active ingredient.

3. The catalyst of claim 1 , wherein a particle size distribution of the catalyst has an average particle size D 10 of 2 μm or more, D 50 of 5-7 μm, and D 90 of 15 μm or less.

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 c m 3 /g or more.

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

6. 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 10-30 nm.

7. The catalyst of claim 1 , wherein a reactant in the hydrogenation reaction is a hydrocarbon resin.

8. The catalyst of claim 1 , wherein a reactant in the hydrogenation reaction is a hydrocarbon resin including at least one selected from a hydrocarbon resin including dicyclopentadiene (DCPD), a hydrocarbon resin including C5 fraction, and a hydrocarbon resin including C9 fraction.

9. 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.

10. A method for manufacturing a catalyst for a hydrogenation reaction, the method comprising:
(a) preparing a first solution by dissolving 10-50 parts by weight of a silica carrier as a support in a solvent based on 40-80 parts by weight of nickel as an active ingredient;
(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 precipitate of the first solution by adding a pH control agent to the precipitation container after the heating;
(d) washing and filtering the precipitate and drying the precipitate at 100-200° C. for 5-24 hours to prepare a dried product; and
(e) reducing the dried product in a hydrogen atmosphere to prepare a reduced product.

11. The method of claim 10 , further comprising, after the step (d), calcining the dried product in an air atmosphere before the reduced product is prepared.

12. The method of claim 11 , wherein a temperature of the air atmosphere is 200-500° C.

13. The method of claim 10 , further comprising, after the step (e), passivating the reduced product with a nitrogen mixed gas including 0.1-20% oxygen.

14. The method of claim 10 , further comprising, after the step (e), passivating the reduced product by immersing the reduced product into an organic solvent.

15. The method of claim 10 , wherein a pH in the step (c) of preparing the precipitate is 7-9.

16. The method of claim 10 , wherein a temperature of the hydrogen atmosphere in the step (e) is 200-500° C.

17. A hydrogenation method for contacting a hydrocarbon resin with hydrogen at a temperature of 100-400° C. in the presence of the catalyst for the hydrogenation reaction manufactured by the method of claim 10 .

18. The hydrogenation method of claim 17 , wherein the hydrocarbon resin comprises at least one selected from a hydrocarbon resin including dicyclopentadiene (DCPD), a hydrocarbon resin including C5 fraction, and a hydrocarbon resin including C9 fraction.

Assignees

• Hanwha Solutions Corp

Inventors

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

Classifications

• B01J21/08

  Silica · CPC title

• B01J35/77

  Compounds characterised by their crystallite size · CPC title

• B01J35/647

  2-50 nm · CPC title

• B01J35/633

  less than 0.5 ml/g · CPC title

• B01J35/615

  100-500 m2/g · CPC title