Method and system for use with an integrated gasification combined cycle plant

摘要

An integrated gasification combined cycle (IGCC) power plant includes an air separation unit configured to discharge a nitrogen flow and an oxygen flow. A first heat exchanger is attached to the air separation unit and heats the discharged nitrogen flow. A second heat exchanger is attached to the air separation unit and heats the discharged oxygen flow. A third heat exchanger is attached to a steam cycle of the IGCC and heats a condensate stream received from the steam cycle. A first adiabatic air compressor is attached to the first, second, and third heat exchangers. The adiabatic air compressor is configured to discharge a compressed air flow comprising a first flow and a second flow. The first flow is channeled to the first and third heat exchangers, and the second flow is channeled to the second and third heat exchangers.

主权项

1. An integrated gasification combined cycle (IGCC) power plant comprising:
an air separation unit configured to discharge a nitrogen flow and an oxygen flow; a first heat exchanger coupled in flow communication with said air separation unit, said first heat exchanger configured to heat the discharged nitrogen flow; a second heat exchanger coupled in flow communication with said air separation unit, said second heat exchanger configured to heat the discharged oxygen flow; a third heat exchanger coupled in flow communication with a steam cycle, said third heat exchanger configured to heat a condensate stream received from the steam cycle, and a first adiabatic air compressor coupled in flow communication with said first, second, and third heat exchangers, said first adiabatic air compressor configured to discharge a compressed air flow comprising a first flow and a second flow, wherein said first flow is channeled to said first and third heat exchanger and said second flow is channeled to said second and third heat exchanger.