As a solution to meet the International Maritime Organization (IMO) regulations on SOx
emissions from ships, Mitsubishi Heavy Industries, Ltd. (MHI) and Mitsubishi Kakoki Kaisha, Ltd.
(MKK) jointly developed a marine-use flue gas desulfurization (FGD) system called the "Hybrid
SOx Scrubber System." One of the advantages of this system is hybrid cleaning, which has two
methods for cleaning the flue-gas: the freshwater closed-cycle mode and seawater open-cycle
mode. These specifications provide sufficient FGD performance that is applicable in various
sailing areas. A packaged module that houses the elemental components enables the efficient use of
the limited area on a ship and shortens the construction work period. This system was delivered to
Kawasaki Kisen Kaisha, Ltd. ("K" Line) for its car carrier that entered service in February 2016.
The sea trials showed the sufficient desulfurization performance of this system under real maritime
conditions.
