Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2011-05-03
2011-11-01
Casaregola, Louis (Department: 3741)
Power plants
Combustion products used as motive fluid
Process
C060S039182, C060S772000
Reexamination Certificate
active
08047007
ABSTRACT:
Disclosed herein is a method for generating “clean” electricity from carbonaceous material, and producing high-pressure CO2which can be easily sequestered or utilized for a beneficial purpose, such as fuel production. This method utilizes a reformation process that reforms carbonaceous fuel with superheated steam into a high-pressure gaseous mixture that is rich in carbon dioxide and hydrogen gas. This high-pressure gas exchanges excess heat with the incoming steam from a boiler. Once cooled, the high-pressure gas goes through a CO2separator, after which the CO2-rich gas is sequestered underground or beneficially re-used. The remaining hydrogen-rich gas is used to generate power in a power generation subsystem, such as a gas turbine or a fuel cell. Therefore, carbon-free power is produced from coal, biomass, natural gas, or another carbon-based feedstock.
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U.S. Department of Energy (DOE), “Evaluating the Potential for ‘Game Changer’ Improvements in Oil Recovery Efficiency From CO2Enhanced Oil Recovery.” Feb. 2006. Prepared by Vello Kuuskraa and George Koperna for DOE, Office of Fossil Energy, Office of Oil and Natural Gas.
Berggren Mark H
Zubrin Robert M
American Patent Agency
Casaregola Louis
Hussain Daniar
Pioneer Energy Inc.
Smith Brian
LandOfFree
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