Partial oxidation gas turbine cooling
AssigneeGas Technology Institute
InventorsIosif K Rabovitser, Serguei Nester, Stanley Wohadlo, Mehmet Tartan
Life of this patent
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Abstract
A power generation system and method in which a fuel gas is introduced into a combustor and at least a portion of the fuel gas is combusted in the combustor, producing an exhaust gas having no appreciable available oxygen. The exhaust gas is introduced as a working fluid into a gas turbine, thereby generating power. Cooling of the power generation system is accomplished using a cooling fluid selected from the group consisting of synthesis gas, natural gas, natural gas/steam mixture, flue gas, flue gas/steam mixture, and mixtures thereof.
Claims16
A power generation system comprising:
- an air compressor having an air inlet and a compressed air outlet;
- a combustor having a fuel inlet, a compressed air inlet in fluid communication with said compressed air outlet, and a combustor exhaust gas outlet;
- a gas turbine having an exhaust gas inlet in fluid communication with said combustor exhaust gas outlet and having a turbine exhaust gas outlet;
- and
- cooling means for cooling at least one of said combustor and said gas turbine, said cooling means comprising a cooling fluid selected from the group consisting of synthesis gas, natural gas, natural gas/steam mixture, flue gas, flue gas/steam mixture, and mixtures thereof and a heat exchanger in heat exchange relationship with said combustor, said heat exchanger having a combustor cooling fluid inlet for receiving said cooling fluid.
A method of power generation comprising the steps of:
- introducing a fuel gas into a combustor having a fuel gas inlet and a combustor exhaust gas outlet;
- combusting at least a portion of said fuel gas at substoichiometric conditions in said combustor, producing an exhaust gas having no appreciable free oxygen;
- introducing said exhaust gas into a gas turbine having a turbine exhaust gas inlet and a turbine exhaust gas outlet, thereby generating power;
- and
- cooling at least one of said combustor and said gas turbine with a cooling fluid selected from the group consisting of synthesis gas, natural gas, natural gas/steam mixture, flue gas, flue gas/steam mixture, and mixtures thereof.
Dependencies are inferred from the claim text.