Cogeneration of electricity and liquid carbon dioxide by combust

Details Cogeneration of electricity and liquid carbon dioxide by combust Cogeneration of electricity and liquid carbon dioxide by combust

1989-03-20

1990-07-24

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3907, 60 39182, 622383, F02C 618, F25B 2702

Patent

active

049427342

ABSTRACT:
Cogeneration of electricity and liquid carbon dioxide is conducted by combusting methane-rich gas to power a gas turbine and a steam turbine; each turbine drives an electric generator. Carbon dioxide is separated from the combustion products by an amine absorption system to which heat for releasing absorbed carbon dioxide is supplied by steam drawn from the steam turbine. Some of that steam is used to produce refrigeration with an ammonia absorption refrigeration unit. The refrigeration is applied to the separated carbon dioxide to liquefy it. Fractionation to yield purified liquid carbon dioxide is easily achieved and saleable refrigeration is another optional product of cogeneration.

REFERENCES:
patent: 2339185 (1944-01-01), Nettel
patent: 4528811 (1985-07-01), Stahl
patent: 4711093 (1987-12-01), Markbreiter et al.
patent: 4745768 (1988-05-01), Schorr et al.

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