Due to growing recognition of the harmful effects of combustion exhaust by-products, marine emissions control regulations have been tightening worldwide. Stakeholders are searching for answers. A survey of emission control systems is presented, evaluating each option with regards to efficacy, operating limitations, acquisition cost, lifecycle cost, and system effects. A new technology known as the Advanced Catalytic Converter, which offers improved emissions reduction performance and the benefit of increasing diesel plant fuel efficiency, is presented.

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