System and method for making renewable fuels

Patent metadata

Field	Value
Publication number	US-9951280-B2
Application number	US-201615144222-A
Country	US
Kind code	B2
Filing date	May 2, 2016
Priority date	Mar 24, 2011
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

Multiple catalytic processing stations enable a method for producing volatile gas streams from biomass decomposition at discrete increasing temperatures. These catalytic processing stations can be programmed to maximize conversion of biomass to useful renewable fuel components based on input feedstock and desired outputs.

First claim

The invention claimed is:

1. A method for converting biomass, comprising:
providing a system containing a number of processing stations (N) in communication with a series of catalysts;
heating a biomass within the stations at a starting temperature (Tstart) to produce a volatile and a non-volatile component, said biomass and said heating selected to provide volatile components suitable for producing a BTX blend; and
subjecting the volatile components generated in at least one station through the series of catalysts to produce a BTX blend.

2. The method of claim 1 , wherein said series of catalysts is selected based on said starting temperature.

3. The method of claim 1 , wherein said series of catalyst is based on the biomass composition.

4. The method of claim 3 , wherein the biomass is a lipid-rich biomass and the volatile components from the lipid-rich biomass is contacted with a dehydration catalyst to produce a product which on cooling to a temperature range of 1-20° C. produces a second volatile component, a first renewable fuel and water.

5. The method of claim 3 , wherein the biomass is a hemicellulose-rich biomass and a volatile component from the hemicellulose-rich biomass is contacted directly with an aromatization catalyst to produce a product which on cooling to a temperature of 0-5° C. produces a second volatile component, a first renewable fuel and water.

6. The method of claim 3 , wherein the biomass is a lignin-rich biomass and the volatile component from the lignin-rich biomass is contacted with a dehydration catalyst to produce a product which on cooling to 2-20° C. produces a second volatile component, a renewable fuel and water.

7. The method of claim 1 , further comprising incrementing an individual processing station temperature by increments (ΔT) to produce a volatile and a non-volatile component, said biomass and said incremental heating selected to provide incremental volatile components suitable for producing a BTX blend.

8. The method of claim 7 , wherein the increment is in the range of 0° C. to 200° C.

9. A method for converting biomass, comprising:
providing a device containing a number of processing stations (N) and a series of catalysts;
subjecting biomass within the stations to at least one starting temperature (Tstart);
incrementing an individual processing station temperature by increments (ΔT) to produce a volatile and a non-volatile component; and
subjecting the volatile components generated in each station through a sequence of catalysts to produce a BTX blend.

10. The method of claim 9 , further comprising:
identifying the temperature of an individual processing station after a temperature increment;
routing the volatile components generated at the individual processing station through a series of catalysts, said series of catalysts determined by the incremented temperature.

11. The method of claim 9 , wherein the sequence of catalyst contact is determined by renewable fuel yield or by temperature of devolatization of biomass components.

12. The method of claim 1 or 9 , wherein a co-solvent is added to volatile components or added to at least one of the processing stations, and the co-solvent comprises at least one co-solvent selected from the group consisting of alcohols, aldehydes, ketones, ethers, carboxylic acids, and hydrocarbons, and wherein the co-solvent is generated via a syngas conversion catalyst.

13. The method of claim 1 or 9 , wherein biomass is selected from the group consisting of lipids, hemicellulose, cellulose and lignins.

14. The method of claim 1 or 9 , wherein at least one processing station comprises an auger reactor.

15. A method for converting biomass to a product, comprising:
providing a system containing a number of processing stations (N) in communication with a series of catalysts, wherein the series of catalysts comprise a dehydration catalyst, an aromatization catalyst and a gas-upgrading catalyst;
heating a biomass within the stations at a starting temperature (Tstart) to produce a volatile and a non-volatile component, said biomass and said heating selected to provide volatile components suitable for producing a BTX blend; and
subjecting the volatile components generated in at least one station through the series of catalysts to produce a BTX blend suitable for producing the product.

16. The method of claim 15 wherein the volatile components are subjected serially to the dehydration catalyst, the aromatization catalyst and then the gas-upgrading catalyst.

Assignees

• Cool Planet Energy Systems Inc

Inventors

• Cheiky Michael C
• Malyala Rajashekharam

Classifications

• C10L3/08

  Production of synthetic natural gas · CPC title

• Y02E50/14

  Cross-Sectional Technologies · mapped topic

• C10B53/02

  of cellulose-containing material (production of pyroligneous acid C10C5/00) · CPC title

• C10G3/42

  Catalytic treatment · CPC title

• C10L2200/0469

  Renewables or materials of biological origin · CPC title