Apparatus for reducing greenhouse gas emission in vessel and vessel including the same
AssigneeDaewoo Shipbuilding & Marine Engineering Co., Ltd.
InventorByung Tak Nam
Life of this patent
Estimating the term…
Abstract
The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, in which CO2 absorbed by taking only a part of the absorbent liquid used when collecting CO2 is removed, so that the device sizes of an absorbent liquid recycling unit and an absorbent liquid circulating unit is kept small and continuous operation is enabled. Or in which exhaust gas is cooled by a heat exchange method, thereby preventing the decrease in a concentration of an absorbent liquid, and CO2 absorbed by taking only a part of the absorbent liquid used when collecting CO2 is removed and an unreacted absorbent liquid is continuously circulated, thereby enabling continuous operation.
Claims20
An apparatus for reducing greenhouse gas emission in a vessel, the apparatus comprising:
- a seawater supply unit that supplies seawater;
- an absorbent liquid producing unit that produces and supplies a high-concentration CO2 absorbent liquid;
- an absorption tower comprising a CO2 removing unit that cools exhaust gas discharged from a vessel engine by reacting the exhaust gas with the seawater supplied from the seawater supply unit, and removes CO2 by reacting the cooled exhaust gas with the absorbent liquid supplied from the absorbent liquid producing unit to convert CO2 into an aqueous ammonium salt solution;
- an absorbent liquid recycling unit that recycles the absorbent liquid and NH3 by reacting the aqueous ammonium salt solution discharged from the absorption tower with an aqueous divalent metal hydroxide solution and circulates and supplies the absorbent liquid and the NH3 to the absorption tower for reuse as the absorbent liquid;
- and
- an absorbent liquid circulating unit that circulates the aqueous ammonium salt solution or a part of an unreacted absorbent liquid discharged from a lower end of the absorption tower through an absorbent liquid circulation line to an upper end of the absorption tower.
An apparatus for reducing greenhouse gas emission in a vessel, the apparatus comprising:
- an exhaust gas cooling unit that cools exhaust gas discharged from a vessel engine;
- an absorbent liquid producing unit that produces and supplies a high-concentration CO2 absorbent liquid;
- an absorption tower comprising a CO2 removing unit that removes CO2 by reacting the exhaust gas cooled by the exhaust gas cooling unit with the absorbent liquid supplied from the absorbent liquid producing unit to convert CO2 into an aqueous ammonium salt solution;
- an absorbent liquid recycling unit that recycles the absorbent liquid and NH3 by reacting the aqueous ammonium salt solution discharged from the absorption tower with an aqueous divalent metal hydroxide solution and circulates and supplies the absorbent liquid and the NH3 to the absorption tower for reuse as the absorbent liquid;
- and
- an absorbent liquid circulating unit that circulates the aqueous ammonium salt solution or a part of an unreacted absorbent liquid discharged from a lower end of the absorption tower through an absorbent liquid circulation line to an upper end of the absorption tower.
Dependencies are inferred from the claim text.