13.3 Methods to reduce exhaust emissions
All standard Wärtsilä engines meet the NOx emission level set by the IMO (International Maritime
Organisation) and most of the local emission levels without any modifications. Wärtsilä has
also developed solutions to significantly reduce NOx emissions when this is required.
Diesel engine exhaust emissions can be reduced either with primary or secondary methods.
The primary methods limit the formation of specific emissions during the combustion process.
The secondary methods reduce emission components after formation as they pass through
the exhaust gas system.
Refer to the "Wärtsilä Environmental Product Guide" for information about exhaust gas emission
control systems.
Wärtsilä 46F Product Guide - a19 - 1 December 2017 13-3
13. Exhaust EmissionsWärtsilä 46F Product Guide
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