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US 2025/0052177 A1Published application
Co2 power cycle with adiabatic compression
Assignee8 Rivers Capital, LLC
InventorRodney John Allam
Life of this patent
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Abstract
The present disclosure relates to systems and methods useful for power production. In particular, a power production cycle utilizing CO2 as a working fluid may be combined with a second cycle wherein a compressed CO2 stream from the power production cycle, which can be heated and expanded to produce additional power and to provide additional heating to the power production cycle.
Claims12
A power production cycle comprising:
- combusting a hydrocarbon fuel stream with an oxygen stream to produce combustion products;
- combining the combustion products with a preheated circulating pressurized CO2 stream to form a mixture;
- and
- feeding the mixture to a power turbine to create a discharge, the discharge then being fed into a recuperative heat exchanger to preheat the circulating pressurized CO2 stream,
- wherein an adiabatic compression system is used to compress the circulating pressurized CO2 stream and oxygen from a turbine discharge pressure region to a turbine inlet pressure region,
- wherein the circulating pressurized CO2 stream and oxygen leaving the adiabatic compression system enter the recuperative heat exchanger where they are heated against a cooling turbine exhaust flow, and
- wherein turbine exhaust leaving the recuperative heat exchanger enters a second heat exchanger that heats one or more fluid streams supplied from external sources.
4 more elements
Dependencies are inferred from the claim text.