Northern Lights Diesel Exhaust Cleaning System

by John C Payne

Northern Lights, an industry leader in marine power generation, propulsion and HVACR, has launched DECS - its revolutionary Diesel Exhaust Cleaning System. Based on DCL International’s MARINE-X™ system, DECS removes soot and particulate matter as it is emitted from the diesel engine. The air and water quality on and around the vessel is vastly improved, offering a clean, enjoyable environment for everyone onboard. When equipped with DECS, exhaust gas is routed through a catalytically coated ceramic filter, trapping soot and particulates.


Unlike the competitors’ systems, DECS uses a passive regeneration process which does not require additional equipment, controls or regeneration time. The Northern Lights generator set functions as normal while particulate matter is continually burned off using the heat emitted by the engine’s own exhaust. DECS’ unique filtration process reduces carbon monoxide by up to 98 percent and diesel hydrocarbons by up to 95 percent. At a conservatively rated exhaust gas temperature of 300° C (572° F), the soot burns away and transforms into harmless CO2. It is CARB Level 3 verified and NO2 compliant.

DECS’ modular steel housing and removable elements are designed to thrive in the unforgiving marine environment. DECS is engineered to be application specific and its polished stainless steel exterior maintains a low-service temperature with a high polish to complement any engine room. The state-of-the-art monitoring system records critical engine information. DECS meets or exceeds the sound attenuation standard of marine engine mufflers, as well as all classification society requirements.

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