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US 12,123,336 B2Granted
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
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Abstract
The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel, and a vessel including the same, which are capable of satisfying IMO greenhouse gas emission regulations by separating and discharging NOX, SOX, and CO2 from exhaust gas exhausted from a vessel engine and increasing CO2 solubility and CO2 removal efficiency by removing CO2 after removing SOX.
Claims20
An apparatus for reducing greenhouse gas emission in a vessel, the apparatus comprising:
- a seawater supply unit that supplies seawater;
- an ammonia water producing unit that reacts fresh water with NH3 to produce and supply ammonia water;
- 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 ammonia water supplied from the ammonia water producing unit to convert CO2 into NH4HCO3(aq);
- and
- an ammonia recycling unit that recycles NH3 by reacting NH4HCO3(aq) discharged from the absorption tower with Ca(OH)2 or Mg(OH)2, and returns the recycled NH3 back to the ammonia water producing unit.
2 more elements
Dependencies are inferred from the claim text.