Patent ID: 6898936
Filing Date: 2005-05-31
Classification: F23C,F23J,F23L,Y02E

Abstract:
1. A method of remediating and recovering energy from combustion products from a fossil fuel power plant having at least one fossil fuel combustion chamber, at least one compressor, at least one turbine, at least one heat exchanger, and a source of oxygen, said power plant producing combustion products including non-condensable gases including oxygen, argon, and nitrogen and condensable vapors including water vapor and acid gases including SO X and NO X and CO 2 and pollutants and recovering energy during the remediation and which recycles the combustion products and adds oxygen to support combustion, comprising: changing the temperature/pressure relationship of the combustion products by cooling, through heat exchange with thermodynamic working fluids in the power generation cycle and/or compressing and/or heating and/or expanding the combustion products to a temperature/pressure relationship below the dew point of at least some of the condensable vapors to condense liquid having some acid gases dissolved therein from the combustion products and to dissolve some of the pollutants therein thereby partially to remediate the combustion products while recovering heat from the combustion products through heat exchange between the combustion products and thermodynamic working fluids and/or cooling fluids used in the power generating cycle, repeating one or more of cooling and/or compressing and/or heating and/or expanding with condensation and separation of condensable vapors and acid gases and recovery of heat through heat exchange, and condensation thereby reducing the energy required for continued compression, until the partially remediated stream is CO