Catalyst for fluidized catalytic cracking and method for fluidized catalytic cracking

Patent metadata

Field	Value
Publication number	US-10357761-B2
Application number	US-201514719582-A
Country	US
Kind code	B2
Filing date	May 22, 2015
Priority date	May 22, 2014
Publication date	Jul 23, 2019
Grant date	Jul 23, 2019

Abstract

The present invention relates to a catalyst for fluidized catalytic cracking of hydrocarbon oil containing a framework-substituted zeolite-1 in which zirconium atoms and/or hafnium atoms form a part of a framework of an ultra-stable Y-type zeolite.

First claim

We claim:

1. A method for cracking a hydrocarbon oil comprising contacting the hydrocarbon oil with a catalyst comprising an ultra-stable Y-type zeolite in a fluidized catalytic cracking unit to produce light olefins and gasoline fuel, wherein the ultra-stable Y-type zeolite is a framework-substituted zeolite in which a part of aluminum atoms constituting a zeolite framework thereof is substituted with 0.1-5 mass % zirconium atoms and 0.1-5 mass % titanium ions calculated on an oxide basis.

2. The method according to claim 1 , comprising contacting a hydrocarbon oil having a boiling point range above about 350° C. to said catalyst at a reaction temperature ranging from about 450° C. to about 700° C., a pressure of about 1 to about 10 bars, for from about 0.1 to about 60 seconds, at a catalyst to oil ratio of from about 2:1 to about 30:1.

3. The method according to claim 1 , wherein the fluidized catalytic cracking unit is a downer reactor.

4. The method according to claim 1 , wherein the fluidized catalytic cracking unit is a riser reactor.

5. The method according to claim 1 , comprising carrying out said cracking under conditions effective to maximize production of gasoline and light olefins.

6. The method according to claim 1 , comprising carrying out said cracking under conditions effective to maximize production of light olefins.

7. The method according to claim 1 , wherein said catalyst comprises a mixture of said framework-substituted ultra-stable Y-type zeolite and one or more additional fluidized cracking catalyst materials.

8. The method according to claim 1 , wherein the framework-substituted ultra-stable Y-type zeolite has a crystal lattice constant of 2.430 to 2.450 nm, a specific surface area of about 600 to about 900 m 2 /g, and a molar ratio of SiO 2 to Al 2 O 3 in the range of about 5:1 to about 100:1.

9. The method of claim 1 , wherein said catalyst comprises from 20% to 50% by mass of zeolite.

10. The method of claim 1 , wherein said catalyst comprises from 15% to 25% by mass of inorganic binder.

11. The method of claim 10 , wherein said inorganic binder is silica sol, water glass, or silicic acid liquid.

12. The method of claim 10 , wherein said inorganic binder is basic aluminum chloride, aluminum biphosphate, or alumina sol.

13. The method of claim 10 , wherein said inorganic binder comprises kaolin, clay, activated alumina, porous silica, a rare earth oxide, or a metal trapping agent.

14. The method of claim 13 , wherein said rare earth oxide has formula
RE 2 O 3

and is present at a range of 0 to 3% by mass.

15. The method of claim 14 , wherein RE is Ce, La, Pr, or Nd.

16. The method of claim 1 , wherein the ultra-stable Y-type zeolite has a molar ratio of SiO 2 to Al 2 O 3 in the range of about 20:1 to 100:1.

17. The method of claim 16 , wherein the ultra-stable Y-type zeolite has a molar ratio of SiO 2 to Al 2 O 3 in the range of about 25:1 to 80:1.

Assignees

• Saudi Arabian Oil Co
• Japan Coop Center Petroleum
• Jgc Catalysts & Chemicals Ltd

Inventors

• Koseoglu Omer Refa
• Alsolami Bandar Hussain
• Ushio Masaru
• Arakawa Seiji

Classifications

• B01J2229/183

  in framework positions · CPC title

• C10G11/18

  according to the "fluidised-bed" technique · CPC title

• C10G2400/20

  C2-C4 olefins · CPC title

• C10L1/06

  for spark ignition · CPC title

• C01B39/065

  Galloaluminosilicates; Group IVB- metalloaluminosilicates; Ferroaluminosilicates · CPC title