Title: Oxygen transport membrane based advanced power cycle with low pressure synthesis gas slip stream

Abstract

A method and system for generating electrical power in which a high pressure synthesis gas stream generated in a gasifier is partially oxidized in an oxygen transport membrane based reactor, expanded and thereafter, is combusted in an oxygen transport membrane based boiler. A low pressure synthesis gas slip stream is split off downstream of the expanders and used as the source of fuel in the oxygen transport membrane based partial oxidation reactors to allow the oxygen transport membrane to operate at low fuel pressures with high fuel utilization. The combustion within the boiler generates heat to raise steam to in turn generate electricity by a generator coupled to a steam turbine. The resultant flue gas can be purified to produce a carbon dioxide product.

Inventors:

Kromer, Brian R.; Litwin, Michael M.; Kelly, Sean M.

Issue Date:

2016-09-27

Research Org.:

PRAXAIR TECHNOLOGY, INC. Danbury, CT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1326810

Patent Number(s):

9453644

Application Number:

14/138,619

Assignee:

PRAXAIR TECHNOLOGY, INC. (Danbury, CT)

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL 

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

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F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL 

F23L7/007 - {Supplying oxygen or oxygen-enriched air}

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 F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS

F01K23/067 - {the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification
F01K13/006 - {Auxiliaries or details not otherwise provided for}

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 

F23C2900/99011 - Combustion process using synthetic gas as a fuel, i.e. a mixture of CO and H2

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23L - SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL 

F23L15/04 - Arrangements of recuperators

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS

F01K23/16 - all the engines being turbines
F01K7/16 - the engines being only of turbine type

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

Y02E20/18 - Integrated gasification combined cycle [IGCC]

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DOE Contract Number:  

FC26-07NT43088

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Dec 23

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING