SERVICES PRODUCT CATALOGUE

Secondary methods for reducing NO X include Selective Catalytic Reduction
(SCR). The combined silencer and SCR unit developed by Wärtsilä is an ideal
package for retrofitting projects.
You may contact us at NOX@wartsila.com to know more about NO X
reduction solutions.
Primary and secondary methods for SO X reduction
A SO X reduction cannot be achieved with the primary method on the engine.
The solution is to burn low sulphur fuel instead, Wärtsilä engines being
already designed and optimized to run on fuels with any sulphur content.
We can offer engine checks and modifications, as well as tank and system
modifications on board ships expected to operate inside and outside sulphur
emission controlled areas.
Secondary method for reducing SO X is about installing exhaust gas
cleaning system commonly known as scrubber. Scrubbers may use sea
water or different chemicals such as limestone (CaCO 3 ), sodium hydroxide
(NaOH) and ammonia (NH 4 OH), depending on the case. Land base
applications usually scrub exhaust gas with a limestone or sodium hydroxide
scrubber.
Wärtsilä Scrubber system for marine application is being installed on
a tanker and was IMO certified in 2009. It uses fresh water and sodium
hydroxide additives: this configuration offers the best control of efficiency
(not dependant from seawater alkalinity), allows effluent to be kept onboard
in port and estuaries and has the lowest energy consumption as the
water fl ow is clearly smaller than in seawater scrubbers. Let us help you
in the selection, design and installation of the best system suited to your
installation and economic challenges.
You may contact us at SOX@wartsila.com.
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