Modified fuel gas turbo-expander for oxygen blown gasifiers and related method
AssigneeGeneral Electric Company
InventorDavid Andrew Stats
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Abstract
In a power generating plant including a gas turbine which utilizes fuel gas from an oxygen blown gasifier for combustion at a predetermined pressure to drive a primary load, and where the fuel gas is supplied from the gasifier at a pressure higher than the predetermined pressure, an arrangement is provided to decrease the pressure of the fuel gas to a lower pressure required by the gas turbine. This arrangement includes a combustor and an expander downstream of the combustor, the combustor and the expander located between the gasifier and the gas turbine.
Claims8
In a power generating plant including a gas turbine which utilizes fuel gas from an oxygen blown gasifier for combustion at a predetermined pressure to drive a primary load, and where the fuel gas supplied from said gasifier is at a pressure higher than the predetermined pressure, an arrangement to decrease the pressure of said fuel gas to a lower pressure required by the gas turbine comprising a combustor and an expander downstream of said combustor, said combustor and said expander located between said gasifier and said gas turbine;
- said plant further comprising a steam turbine and a heat recovery steam generator where spent steam from the steam turbine is reheated in the heat recovery steam generator by exhaust heat from the gas turbine.
A power generating plant comprising a gas turbine which utilizes fuel gas from an oxygen blown gasifier for combustion at a predetermined pressure to drive a primary load, and where the fuel gas supplied from said gasifier is at a pressure higher than the predetermined pressure;
- and means for reducing said higher pressure fuel gas to said predetermined pressure and supplying said fuel gas to said gas turbine;
- said plant further comprising a steam turbine and a heat recovery steam generator where spent steam from the steam turbine is reheated in the heat recovery steam generator by exhaust heat from the gas turbine.
Dependencies are inferred from the claim text.