Method for converting biomass into liquid fuel

Patent metadata

Field	Value
Publication number	US-9416068-B2
Application number	US-201213714542-A
Country	US
Kind code	B2
Filing date	Dec 14, 2012
Priority date	Jun 16, 2010
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

The invention relates to a method for producing liquid fuel having a high alkane content and a low oxygenized compound content, said method comprising at least: a first step of treating 2-methylfuran with a catalyst and water in reaction conditions in order to form a mixture of products with at least ten carbon atoms; and a second step of catalytic hydrogenation and dehydration of the product or the mixture obtained in step 1, using suitable hydrogenation and dehydration catalysts.

First claim

The invention claimed is:

1. A method for producing fuel comprising:
a) contacting 2-methylfuran with a catalyst and water under suitable reaction conditions to form a mixture of products comprising at least one oligomer of 2-methylfuran having at least ten carbon atoms, and
b) catalytically hydrodeoxygenating said mixture of products to produce the fuel.

2. The method according to claim 1 , wherein the mixture of products is a mixture of oxygenated hydrocarbons.

3. The method according to claim 1 , wherein the at least one oligomer is present in an amount of at least 20% by weight.

4. The method according to claim 1 , wherein the mixture of products have at least 15 carbon atoms.

5. The method according to claim 1 , wherein the catalyst of step a) is an acid catalyst.

6. The method according to claim 5 , wherein the acid catalyst comprises a mineral acid.

7. The method according to claim 6 , wherein the mineral acid comprises sulfuric acid.

8. The method according to claim 5 , wherein step a) is carried out in the presence of an insoluble acid.

9. The method according to claim 5 , wherein step a) is carried out in the presence of an acid resin.

10. The method according to claim 1 , wherein the reaction of step a) is carried out at a temperature between 0° C. and 200° C.

11. The method according to claim 1 , wherein the hydrodeoxygenation is carried out at a temperature between 180° C. and 450° C.

12. The method according to claim 1 , wherein the hydrodeoxygenation is carried out at a hydrogen pressure between 0.1 bar and 60 bar.

13. The method according to claim 1 , wherein the hydrodeoxygenation catalyst comprises at least a metal function and a dehydrating function.

14. The method according to claim 13 , wherein the hydrodeoxygenation catalyst comprises at least one of the elements selected from Re, Pd, Ru, Pt, Rh, Ni, and Cu, and further comprises a support.

15. The method according to claim 14 , wherein the support is selected from active carbon, an inorganic oxide and combinations thereof.

16. The method according to claim 15 , wherein the support is an inorganic oxide selected from alumina, zirconia, titania, silica and combinations thereof.

17. The method according to claim 10 , wherein the reaction of step a) is carried out at a temperature between 0° C. and 100° C.

18. The method according to claim 11 , wherein the hydrodeoxygenation is carried out at a temperature between 220° C. and 400° C.

19. The method according to claim 12 , wherein the hydrodeoxygenation is carried out at a hydrogen pressure between 3 bar and 50 bar.

Assignees

• Consejo Superior De Investig Cientificas (Csic)
• Univ Valencia Politecnica

Inventors

• Corma Canos Avelino
• Renz Michael
• De La Torre Alfaro Olalla

Classifications

• Y02P30/20

  using bio-feedstock · CPC title

• C10G2300/1011

  Biomass · CPC title

• C10G2300/1014

  of vegetal origin · CPC title

• C10G3/44 Primary

  characterised by the catalyst used · CPC title

• C10G69/126

  polymerisation, e.g. oligomerisation · CPC title