Fluid catalytic cracking process including adsorption of hydrogen and a catalyst for the process

Patent metadata

Field	Value
Publication number	US-9701913-B2
Application number	US-201314108384-A
Country	US
Kind code	B2
Filing date	Dec 17, 2013
Priority date	Dec 17, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A process for catalytic cracking includes the steps of: (a) contacting a hydrocarbon feed with a catalyst at catalytic cracking conditions; (b) adsorbing hydrogen on the catalyst during cracking; and (c) producing a cracked product, preferably propylene, wherein the catalyst comprises (i) a matrix, (ii) a catalytically active material, and (iii) a hydrogen adsorption material. Another process for catalytic cracking includes the steps of: (a) contacting a hydrocarbon feed with a catalyst at catalytic cracking conditions; (b) contacting the hydrocarbon feed with a hydrogen adsorption material; (c) adsorbing hydrogen on the hydrogen adsorption material during cracking; and (d) producing a cracked product, wherein the catalyst comprises (i) a matrix and (ii) a catalytically active material.

First claim

The invention claimed is:

1. A process for catalytic cracking comprising:
(a) contacting a hydrocarbon feed with a catalyst at catalytic cracking conditions;
(b) adsorbing hydrogen on the catalyst during cracking; and
(c) producing a cracked product wherein the catalyst comprises:
(i) a matrix;
(ii) a catalytically active material; and
(iii) a hydrogen adsorption material, wherein the hydrogen adsorption material is selected from the group consisting of nonporous amorphous carbons, graphite, graphene, fullerenes, activated carbons, metal-organic frameworks, chemically modified carbon adsorbents, alkali metal doped graphene structures, pillared graphite structures, metal-doped carbon adsorbents, and mixtures thereof.

2. The process of claim 1 further comprising:
(d) recovering the catalyst from the hydrocarbon feed;
(e) regenerating the catalyst to yield a regenerated catalyst;
(f) desorbing hydrogen during regeneration; and
(g) contacting the regenerated catalyst with the hydrocarbon feed.

3. The process of claim 1 wherein: the hydrogen adsorptive material is on the matrix with the catalytically active metal.

4. The process of claim 1 wherein: the hydrogen adsorptive material is separate from the matrix on which the catalytically active metal is deposited.

5. The process of claim 1 wherein the hydrogen adsorption material is selected from the group consisting of nonporous amorphous carbons, graphite, graphene, fullerenes, activated carbons, metal-organic frameworks, chemically modified carbon adsorbents, alkali metal doped graphene structures, pillared graphite structures, metal-doped carbon adsorbents, and mixtures thereof.

6. The process of claim 1 wherein the hydrogen adsorption material is selected from the group consisting of titanium dioxide, copper-ruthenium bimetallic catalysts, magnesia-supported cesium-ruthenium bimetallic catalysts, and mixtures thereof.

7. The process of claim 1 wherein the cracked product comprises propylene.

8. The process of claim 1 wherein the matrix comprises a matrix material selected from the group consisting of metal oxides, clays, silicas, aluminas, silica-aluminas, silica-magnesias, silica-zirconias, silica-thorias, silica-berylias, silica-titanias, silica-alumina-thorias, silica-alumina-zirconias, aluminophosphates, and mixtures thereof.

9. The process of claim 1 wherein the catalytically active material comprises a microporous, aluminosilicate.

10. A process for catalytic cracking comprising:
(a) contacting a hydrocarbon feed with a catalyst at catalytic cracking conditions;
(b) adsorbing hydrogen on the catalyst during cracking; and
(c) producing a cracked product wherein the catalyst comprises:
(i) a matrix;
(ii) a catalytically active material; and
(iii) a hydrogen adsorption material, wherein the hydrogen adsorption material is selected from the group consisting of titanium dioxide, copper-ruthenium bimetallic catalysts, magnesia-supported cesium-ruthenium bimetallic catalysts, and mixtures thereof.

11. The process of claim 10 further comprising:
(d) recovering the catalyst from the hydrocarbon feed;
(e) regenerating the catalyst to yield a regenerated catalyst;
(f) desorbing hydrogen during regeneration; and
(g) contacting the regenerated catalyst with the hydrocarbon feed.

12. The process of claim 10 wherein: the hydrogen adsorptive material is on the matrix with the catalytically active metal.

13. The process of claim 10 wherein: the hydrogen adsorptive material is separate from the matrix on which the catalytically active metal is deposited.

14. The process of claim 10 wherein the cracked product comprises propylene.

15. The process of claim 10 wherein the matrix comprises a matrix material selected from the group consisting of metal oxides, clays, silicas, aluminas, silica-aluminas, silica-magnesias, silica-zirconias, silica-thorias, silica-berylias, silica-titanias, silica-alumina-thorias, silica-alumina-zirconias, aluminophosphates, and mixtures thereof.

16. The process of claim 10 wherein the catalytically active material comprises a microporous, aluminosilicate.

Assignees

• Uop Llc

Inventors

• Lippmann Matthew
• Rio Alex A
• Couch Keith A

Classifications

• C10G11/02

  characterised by the catalyst used · CPC title

• C10G11/18 Primary

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