Catalyst for processing oxychlorination of hydrocarbon, preparation method therefor, and preparation method of oxychlorinated compound of hydrocarbon using same

Patent metadata

Field	Value
Publication number	US-11179703-B2
Application number	US-201916958443-A
Country	US
Kind code	B2
Filing date	Feb 22, 2019
Priority date	Feb 23, 2018
Publication date	Nov 23, 2021
Grant date	Nov 23, 2021

Abstract

A catalyst for an oxychlorination process of hydrocarbons, a preparation method thereof, and a method for preparing an oxychlorination compound of hydrocarbons using the same.

First claim

The invention claimed is:

1. A catalyst for an oxychlorination process of hydrocarbons, the catalyst comprising:
a catalyst material comprising (a) copper, (b) a first co-catalyst comprising one or more selected from the group consisting of an alkali metal and an alkaline earth metal, and (c) a second co-catalyst comprising a lanthanide metal; and
a carrier comprising cerium oxide.

2. The catalyst of claim 1 , where the catalyst material is present in the catalyst in an amount of 5 wt % to 25 wt % based on a total weight of the catalyst.

3. The catalyst of claim 1 , wherein an amount of the first co-catalyst and an amount of the second co-catalyst is the same as or different from each other, and the amount of the first co-catalyst and the amount of the second co-catalyst are each in an amount of 10 parts by weight to 2,000 parts by weight based on 100 parts by weight of copper.

4. The catalyst of claim 1 , wherein the first co-catalyst comprises one or more selected from the group consisting of sodium, lithium, potassium, magnesium, and calcium.

5. The catalyst of claim 1 , wherein the second co-catalyst further comprises one or more selected from the group consisting of yttria and a rare earth element.

6. The catalyst of claim 1 , wherein the carrier has a specific surface area of 50 m 2 /g to 250 m 2 /g.

7. The catalyst of claim 1 , wherein cerium oxide is present in the carrier in an amount of 80 wt % or more based upon a total 100 wt % of the carrier.

8. The catalyst of claim 1 , wherein the catalyst is in the form of particles having a diameter of 0.1 mm to 1.0 mm.

9. A method for preparing the catalyst for an oxychlorination process of hydrocarbons according to claim 1 , the method comprising:
preparing a carrier comprising cerium oxide; and
supporting an active material comprising copper, a first co-catalyst, and a second co-catalyst on the carrier.

10. A method for preparing an oxychlorination compound of hydrocarbons, comprising:
performing an oxychlorination reaction of hydrocarbons in the presence of the catalyst according to claim 1 .

11. The method of claim 10 , wherein the method is performed under a process temperature of 450° C. to 550° C., a pressure of 0.5 atm to 3 atm, and a space velocity of 2,000 h −1 to 20,000 h 31 1 .

12. The method of claim 10 , wherein the method is performed in a packed bed reactor, a fluidized bed reactor, or a circulating fluidized bed reactor.

13. The catalyst of claim 1 , wherein cerium oxide is present in the carrier in an amount of 90 wt % or more based upon a total 100 wt % of the carrier.

14. The catalyst of claim 1 , wherein cerium oxide is present in the carrier in an amount of 99 wt % or more based upon a total 100 wt % of the carrier.

15. The catalyst of claim 1 , wherein the carrier consists of cerium oxide.

Assignees

• Lg Chemical Ltd
• Seoul Nat Univ R&Db Foundation

Inventors

• Bang Jungup
• Kim Do Heui
• Hwang Gyo Hyun
• Jung Jongwook
• Bang Yongju
• Ryou Youngseok
• Kim Jeongeun

Classifications

• B01J35/40

  characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77) · CPC title

• B01J2235/15

  X-ray diffraction · CPC title

• B01J2235/30

  Scanning electron microscopy; Transmission electron microscopy · CPC title

• B01J2235/00

  Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title

• C07C17/154

  of saturated hydrocarbons · CPC title