Inventors:
Klaus BRUN - Helotes TX, US
Marybeth G. NORED - San Antonio TX, US
Jason T. GATEWOOD - San Antonio TX, US
James J. MOORE - Midlothian TX, US
Assignee:
SOUTHWEST RESEARCH INSTITUTE - San Antonio TX
International Classification:
F25J 3/08
Abstract:
Methods and apparatus for an oxy-fuel combustion power cycle are provided, including converting gaseous carbon dioxide to liquid and/or supercritical carbon dioxide which may include the use of a cryogenic pump, removing a portion of the liquid and/or supercritical carbon dioxide from the cycle, combusting oxygen and a combustion fuel with the remaining liquid and/or supercritical carbon dioxide in an oxy-fuel combustor to generate steam and additional liquid and/or supercritical carbon dioxide which replaces the portion of the liquid and/or supercritical carbon dioxide sequestered from the cycle.