Methods and systems for reducing carbon dioxide in combustion flue gases
First Claim
1. A method for processing flue-gas, said method comprising:
- providing an absorber unit having a membrane contactor;
channeling a combustion flue gas along a first surface of the membrane contactor;
channeling an ammonia-based liquid reagent along a second opposing surface of the membrane contactor; and
partially separating the ammonia based liquid from the flue gas such that the ammonia-based liquid and the flue gas contact at gas-liquid interface areas, defined by a plurality of pores of the membrane contactor, to separate carbon dioxide (CO2) from the flue gas by a chemical absorption of CO2 within the ammonia-based liquid to produce a CO2-rich ammonia-based liquid.
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Accused Products
Abstract
A method for processing flue-gas, in an exemplary embodiment, includes providing an absorber unit having a membrane contactor, channeling a combustion flue gas along a first surface of the membrane contactor, and channeling an ammonia-based liquid reagent along a second opposing surface of the membrane contactor. The method also includes partially separating the ammonia-based liquid from the flue gas such that the ammonia-based liquid and the flue gas contact at gas-liquid interface areas, defined by a plurality of pores of the membrane contactor, to separate CO2 from the flue gas by a chemical absorption of CO2 within the ammonia-based liquid to produce a CO2-rich ammonia-based liquid.
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Citations
20 Claims
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1. A method for processing flue-gas, said method comprising:
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providing an absorber unit having a membrane contactor; channeling a combustion flue gas along a first surface of the membrane contactor; channeling an ammonia-based liquid reagent along a second opposing surface of the membrane contactor; and partially separating the ammonia based liquid from the flue gas such that the ammonia-based liquid and the flue gas contact at gas-liquid interface areas, defined by a plurality of pores of the membrane contactor, to separate carbon dioxide (CO2) from the flue gas by a chemical absorption of CO2 within the ammonia-based liquid to produce a CO2-rich ammonia-based liquid. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A combustion system comprising:
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an absorber unit comprising; a housing for channeling a combustion flue gas; an ammonia-based liquid reagent channeled within said housing; a membrane contactor coupled within said housing to separate said ammonia based liquid from the flue gas, said membrane contactor comprising a plurality of pores defining gas-liquid interface areas, said ammonia-based liquid and the flue gas contacting at said gas-liquid interface areas to separate carbon dioxide from the flue gas by a chemical absorption of CO2 within said ammonia-based liquid to provide a CO2-rich ammonia-based liquid; and a desorber unit coupled to said absorber unit, wherein said desorber unit receives and releases CO2 from the CO2-rich ammonia-based liquid. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A flue-gas processing system comprising:
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a housing for channeling a combustion flue gas; an ammonia-based liquid reagent channeled within said housing; and a membrane contactor coupled within said housing to separate said ammonia based liquid from the flue gas, said membrane contactor comprising a plurality of pores defining gas-liquid interface areas, said ammonia-based liquid and the flue gas contacting at said gas-liquid interface areas to separate carbon dioxide from the flue gas by a chemical absorption of CO2 within said ammonia-based liquid to provide a CO2-rich ammonia-based liquid. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification