Patent ID: 9040005
Filing Date: 2015-05-26
Classification: B01D,F01N,Y02A,Y02T

Abstract:
1. A method for removal of SO 2 from exhaust gas from a marine engine or a marine boiler of a ship, wherein the exhaust gas from said marine engine or marine boiler in a first scrubber section is cooled and washed with seawater, and subsequently in a second scrubber section is washed with circulating freshwater with an addition of an alkaline chemical, the circulating freshwater used for washing being warmer than the seawater used for cooling, and wherein the warmer freshwater is indirectly heat exchanged with cold seawater, the method further comprising passing the exhaust gas washed in the first scrubber section via a demister unit before it is washed with circulating freshwater in the second scrubber section.