Pressurized fluidized bed combustor with fuel cell co2 capture
AssigneeGas Technology Institute
InventorWilliam W. Follett
Life of this patent
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Abstract
Systems and methods for generating electrical power combine pressurized fluidized bed combustors (PFBC) and molten carbonate fuel cells (MCFC) to provide a low cost solution for electricity generation with CO2 capture. A solid fuel is introduced fuel into a pressurized fluidized bed combustor to produce steam, a first quantity of electrical power, and a flue gas including CO2. Air, natural gas, at least a portion of the steam and at least a portion of the flue gas including CO2 are introduced to a molten carbonate fuel cell to produce a second quantity of electrical power and an output stream comprising primarily CO2. The pressurized fluidized bed combustor can desirably be air-fired and the solid fuel introduced there into can desirably be in a finely pulverized form.
Claims20
A method for generating electrical power, said method comprising:
- introducing a solid fuel into a pressurized fluidized bed combustor to produce steam, a first quantity of electrical power, and a flue gas comprising CO2 and N2;
- and
- introducing air, natural gas, at least a portion of the steam and at least a portion of the flue gas comprising CO2 to a molten carbonate fuel cell to produce a second quantity of electrical power and an output stream comprising primarily CO2.
A system for generating electrical power, said system comprising:
- a pressurized fluidized bed combustor to process a solid fuel to produce steam, a first quantity of electrical power, and a flue gas comprising CO2 and N2;
- and
- a molten carbonate fuel cell wherein air, natural gas, the flue gas comprising CO2 and the steam produced by the pressurized fluidized bed combustor are introduced to produce a second quantity of electrical power and an output stream comprising primarily CO2.
Dependencies are inferred from the claim text.