Systems and methods for power production using nested CO2 cycles
First Claim
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1. A power production method comprising:
- operating a first power production cycle wherein a recycled CO2 stream is subjected to repeated compression, heating, combustion, expansion for power production, and cooling; and
operating a second power production cycle wherein compressed recycled CO2 from the first power production cycle is heated with a heat source that is independent of the first power production cycle, expanded for power production, and recombined with the recycled CO2 stream in the first power production cycle.
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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 can be heated and expanded to produce additional power and to provide additional heating to the power production cycle.
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Citations
3 Claims
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1. A power production method comprising:
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operating a first power production cycle wherein a recycled CO2 stream is subjected to repeated compression, heating, combustion, expansion for power production, and cooling; and operating a second power production cycle wherein compressed recycled CO2 from the first power production cycle is heated with a heat source that is independent of the first power production cycle, expanded for power production, and recombined with the recycled CO2 stream in the first power production cycle. - View Dependent Claims (2, 3)
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Specification