NOx reduction catalyst for ships
Wärtsilä Corporation
Wärtsilä offer a nitrogen oxide reducer based on selective catalytic reduction technologies. The reduction in NOX emissions is by 85-95%.
The NOR units are able to reduce NOX emissions to a level of 1.5 g/kWh. IMO Tier III is expected to come into force in 2016.
The new SCR product range caters for the needs of all four-stroke engines in Wärtsilä’s portfolio and can be used for both newbuild and retrofits. The SCR control system is seamlessly integrated with the Wärtsilä engine control system and the units come with a completed prefabricated ancillary system.
Wärtsilä has built up a long field experience in running SCR on its own engines in both power plants and vessels since the early 1990s. Based of this experience Wärtsilä has developed a standard selection of modularized SCRs under the product name of Nitrogen Oxides Reducer (NOR) in close cooperation with a major catalyst manufacturer. The target was to combine efficiency, investment and operation cost.
