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Oxygen transport membrane reactor based method and system for generating electric power

Patent ·
OSTI ID:1343294
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A carbon capture enabled system and method for generating electric power and/or fuel from methane containing sources using oxygen transport membranes by first converting the methane containing feed gas into a high pressure synthesis gas. Then, in one configuration the synthesis gas is combusted in oxy-combustion mode in oxygen transport membranes based boiler reactor operating at a pressure at least twice that of ambient pressure and the heat generated heats steam in thermally coupled steam generation tubes within the boiler reactor; the steam is expanded in steam turbine to generate power; and the carbon dioxide rich effluent leaving the boiler reactor is processed to isolate carbon. In another configuration the synthesis gas is further treated in a gas conditioning system configured for carbon capture in a pre-combustion mode using water gas shift reactors and acid gas removal units to produce hydrogen or hydrogen-rich fuel gas that fuels an integrated gas turbine and steam turbine system to generate power. The disclosed method and system can also be adapted to integrate with coal gasification systems to produce power from both coal and methane containing sources with greater than 90% carbon isolation.
Research Organization:
PRAXAIR TECHNOLOGY, INC. Danbury, CT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-07NT43088
Assignee:
PRAXAIR TECHNOLOGY, INC.
Patent Number(s):
9,562,472
Application Number:
14/619,260
OSTI ID:
1343294
Country of Publication:
United States
Language:
English

References (11)

Stoichiometric lanthanum chromite based ceramic interconnects with low sintering temperature journal March 2006
Development of oxygen transport membranes for coal-based power generation journal January 2011
Development of interconnect materials for solid oxide fuel cells journal May 2003
Electrolysis of carbon dioxide in Solid Oxide Electrolysis Cells journal August 2009
Efficient Reduction of CO2 in a Solid Oxide Electrolyzer journal January 2008
Tubular zirconia–yttria electrolyte membrane technology for oxygen separation journal December 2002
Methods for the catalytic activation of metallic structured substrates journal January 2014
Thermomechanical, transport and anodic properties of perovskite-type (La0.75Sr0.25)0.95Cr1−xFexO3−δ journal May 2012
Fine Ash Formation during Pulverized Coal CombustionA Comparison of O2/CO2 Combustion versus Air Combustion journal March 2007
Freeze-Casting of Porous Ceramics: A Review of Current Achievements and Issues journal March 2008
Ion transport membrane technology for oxygen separation and syngas production journal October 2000

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24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING