Marine diesel NOx emission reduction study

To meet the strict requirement of International Marine Organization (IMO) Tier III regarding emission from marine diesel engines, many researchers have been conducted at marine vessels to reduce exhaust emissions from large diesel engines. This paper introduces many methods to control emission of NOx. Based on some particular types of engines, the emphasis is put upon the technologies currently employed onboard to reduce the NOx emission, especially those technologies utilized overseas in this field with more potential. Finally, trend of development in this field is proposed as well.