Carbon dioxide recovery system and carbon dioxide recovery method
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsTomoki Noborisato, Takashi Kamijo
Life of this patent
Estimating the term…
Abstract
A carbon dioxide recovery system includes: a plurality of absorption towers each disposed for each of a plurality of combustion equipments for absorbing carbon dioxide in an exhaust gas discharged from each of the plurality of combustion equipments into an absorption liquid by bringing the exhaust gas into contact with the absorption liquid; and at least one regeneration tower communicating with each of the plurality of absorption towers, for recovering carbon dioxide from a CO2 rich absorption liquid which is the absorption liquid flowing out of each of the plurality of absorption towers. The regeneration tower is smaller in number than the absorption towers.
Claims4
A carbon dioxide recovery system, comprising:
- absorption towers each disposed for each of combustion equipments for absorbing carbon dioxide in an exhaust gas discharged from the each of the combustion equipments into an absorption liquid by bringing the exhaust gas into contact with the absorption liquid;
- ducts that each connect the combustion equipments with corresponding ones of the absorption towers;
- at least one regeneration tower communicating with each of the absorption towers, for recovering carbon dioxide from a CO2 rich absorption liquid that is the absorption liquid flowing out of each of the absorption towers;
- and
- CO2 rich absorption liquid supply pipes that each connect the absorption towers with the at least one regeneration tower and supply the CO2 rich absorption liquid from the absorption towers to the at least one regeneration tower, wherein
- the regeneration tower is smaller in number than the absorption towers,
- a distance between each of the combustion equipments and a corresponding one of the absorption towers provided for each of the combustion equipments is shorter than a distance between each of the combustion equipments and the regeneration tower, and
- outer diameters of the ducts are larger than outer diameters of the CO2 rich absorption liquid supply pipes.
A carbon dioxide recovery method, comprising:
- a step of absorbing carbon dioxide in an exhaust gas discharged from each of combustion equipments into an absorption liquid by individually bringing the exhaust gas into contact with the absorption liquid in each of absorption towers provided for combustion equipments, respectively, wherein the exhaust gas discharged from each of the combustion equipments;
- and
- a step of recovering carbon dioxide in at least one regeneration tower after merging CO2 rich absorption liquids each of which is the absorption liquid absorbing carbon dioxide, wherein
- the at least one regeneration tower is smaller in number than the absorption towers,
- a distance between each of the combustion equipments and a corresponding one of the absorption towers provided for each of the combustion equipments is shorter than a distance between each of the combustion equipments and the at least one regeneration tower, and
- outer diameters of ducts that each connect the combustion equipments with corresponding ones of the absorption towers are larger than outer diameters of CO2 rich absorption liquid supply pipes that each supply the CO2 rich absorption liquids from the absorption towers to the at least one regeneration tower.
Dependencies are inferred from the claim text.