Cogeneration of electricity and liquid carbon dioxide by...

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

F - Mech Eng,Light,Heat,Weapons

25

J

162/109

F25J 3/00 (2006.01) C01B 31/20 (2006.01) F01K 23/06 (2006.01) F25B 27/02 (2006.01)

Patent

CA 2015909

COGENERATION OF ELECTRICITY AND LIQUID CARBON DIOXIDE BY COMBUSTION OF METHANE-RICH GAS ABSTRACT OF THE DISCLOSURE 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 re- leasing absorbed carbon dioxide is supplied by steam drawn from the steam turbine. Some of that steam is used to pro- duce 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 re- frigeration is another optional product of congeneration.

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