When Sulphur Oxides (SOx) react with nitrogen dioxide (NO2) in the atmosphere, they form sulfuric acid, a key component of acid rain which impacts crops, forests and aquatic species and contributes to the acidification of the oceans. Additionally, SOx emissions contribute to the formation of harmful secondary inorganic aerosol gases, posing risks to human health and ecosystems.

In 2020, regulations introduced by the IMO imposed strict limits on the Sulphur Oxides of marine fuels. The new rules lowered the maximum percentage of Sulphur from 3.5% to 0.5% for all ships operating worldwide. Regulation 4 of MARPOL Annex VI allows for Administrations (flag States) to approve "equivalents" - any "fitting, material, appliance or apparatus to be fitted in a ship or other procedures, alternative fuel oils, or compliance methods used as an alternative to that required" - that enables the same standards of emission control to be met.

Exhaust gas cleaning systems (EGCS) is installed onboard to meet the requirements for Sulphur Oxides reduction economically. Ship scrubbers can be classified into wet scrubbers and dry scrubbers, the wet scrubbers use water which may be sea water or fresh water with chemical additives to remove Sulphur Oxides from exhaust gasses, while dry scrubbers employ solid lime.

Considering many factors including the installation spaces available on board, the availability of fresh water and others, we will help you select the most suitable kind of scrubber system to comply with international regulations and standards economically.