Process for catalytic cracking a pyrolysis oil

Patent metadata

Field	Value
Publication number	US-9469815-B2
Application number	US-201314060195-A
Country	US
Kind code	B2
Filing date	Oct 22, 2013
Priority date	Oct 25, 2012
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

A process for catalytic cracking of a pyrolysis oil derived from material comprising biomass. In one embodiment, the process comprises subjecting a feed comprising the pyrolysis oil to a hydrodeoxygenation step to prepare an at least partially deoxygenated pyrolysis oil; heating a hydrocarbon feed to a temperature in the range from equal to or more than 50° C. to equal to or less than 200° C. to prepare a preheated hydrocarbon feed; mixing the at least partially deoxygenated pyrolysis oil and the preheated hydrocarbon feed to prepare a feed mixture; and contacting the feed mixture with a catalytic cracking catalyst in a catalytic cracking reactor at a temperature of at least 400° C. to prepare a product stream containing one or more cracked products.

First claim

The invention claimed is:

1. A process for catalytic cracking of a pyrolysis oil, said process comprises
contacting a feed comprising a pyrolysis oil with hydrogen and a hydrodeoxygenation catalyst to produce an at least partially deoxygenated pyrolysis oil, wherein the pyrolysis oil is derived from material comprising cellulose and/or lignocellulose;
heating a hydrocarbon feed to a temperature in the range from equal to or more than 50° C. to equal to or less than 200° C. to produce a preheated hydrocarbon feed;
mixing the at least partially deoxygenated pyrolysis oil and the preheated hydrocarbon feed to produce a feed mixture; and
contacting the feed mixture with a fluid catalytic cracking catalyst in a catalytic cracking reactor at a temperature of at least 400° C. to produce a product stream containing one or more cracked products.

2. The process of claim 1 , further comprising atomizing the feed mixture prior to contacting the feed mixture with the fluid catalytic cracking catalyst.

3. The process of claim 2 , wherein the atomizing step comprises atomizing the feed mixture in a feed nozzle.

4. The process of claim 3 , wherein the feed nozzle is a bottom entry feed nozzle or side entry feed nozzle located in a riser reactor.

5. The process of claim 1 , wherein the hydrocarbon feed comprises a petroleum derived hydrocarbon feed.

6. The process of claim 1 , wherein the hydrocarbon feed is heated to a temperature of equal to or more than 60° C. and equal to or less than 140° C.

7. The process of claim 1 , wherein the mixing step comprises mixing the at least partially deoxygenated pyrolysis oil and the preheated hydrocarbon feed in a feed nozzle.

8. The process of claim 7 , wherein the feed nozzle is a bottom entry feed nozzle or side entry feed nozzle located in a riser reactor.

9. The process of claim 1 , further comprising supplying the feed mixture to a riser reactor via one or more bottom entry nozzles and/or one or more side entry nozzle.

10. The process of claim 1 , further comprising separating the product stream into one or more product fractions.

11. The process of claim 10 , further comprising converting the one or more product fractions into one or more biofuel components and/or biochemical components.

Assignees

• Shell Oil Co

Inventors

• Wang Gang
• Gao Jinsen
• Bi Yantao

Classifications

• Y02P30/20

  using bio-feedstock · CPC title

• C10G11/00

  Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils (cracking in direct contact with molten metals or salts C10G9/34) · CPC title

• C10G3/42 Primary

  Catalytic treatment · CPC title

• C10G3/57 Primary

  according to the fluidised bed technique · CPC title

• C10G11/18

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