Title: Apparatus and method for solid fuel chemical looping combustion

Abstract

The disclosure provides an apparatus and method utilizing fuel reactor comprised of a fuel section, an oxygen carrier section, and a porous divider separating the fuel section and the oxygen carrier section. The porous divider allows fluid communication between the fuel section and the oxygen carrier section while preventing the migration of solids of a particular size. Maintaining particle segregation between the oxygen carrier section and the fuel section during solid fuel gasification and combustion processes allows gases generated in either section to participate in necessary reactions while greatly mitigating issues associated with mixture of the oxygen carrier with char or ash products. The apparatus and method may be utilized with an oxygen uncoupling oxygen carrier such as CuO, Mn.sub.3O.sub.4, or Co.sub.3O.sub.4, or utilized with a CO/H.sub.2 reducing oxygen carrier such as Fe.sub.2O.sub.3.

Inventors:

Siriwardane, Ranjani V.; Weber, Justin M.

Issue Date:

2015-04-14

Research Org.:

National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1178018

Patent Number(s):

9004911

Application Number:

13/688,260

Assignee:

U.S. Department of Energy (Washington, DC)

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  {A CARRIER GAS OR} AIR 

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23G - CREMATION FURNACES

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F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  {A CARRIER GAS OR} AIR 

F23C2900/99008 - Unmixed combustion, i.e. without direct mixing of oxygen gas and fuel, but using the oxygen from a metal oxide, e.g. FeO

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23G - CREMATION FURNACES

F23G2900/50202 - Waste pyrolysis, gasification or cracking in presence of catalysts
F23G2201/40 - Gasification

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  {A CARRIER GAS OR} AIR 

F23C13/08 - characterised by the catalytic material
F23C10/01 - in a fluidised bed of catalytic particles

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E20/34 - Indirect CO2 mitigation, i.e. by acting on non CO2 directly related matters of the process, e.g. more efficient use of fuels

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23G - CREMATION FURNACES

F23G2201/50 - Devolatilising

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23B - METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL

F23B7/00 - {Combustion techniques

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Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Nov 29

Country of Publication:

United States

Language:

English

Subject:

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 42 ENGINEERING