Marine vessels, including cargo ships, workboats, inland barges and onboard auxiliary diesel gensets, operate within Emission Control Areas (ECAs) and coastal zones. Marine diesel engines produce high NOₓ and particulate emissions, subject to strict IMO Tier III and MARPOL Annex VI maritime emission regulations. Green Valley marine-grade exhaust aftertreatment systems are engineered for high humidity, vibration and salty corrosive onboard environments, helping vessel owners satisfy international marine emission standards.
Applicable Products:
1. SCR System (Marine Version): Core NOₓ reduction equipment for main & auxiliary marine diesel engines. Ammonia slip stably controlled below 3ppm. Custom design for limited onboard space.
2. DPF (Ceramic / Metallic Substrate): Captures soot and particulate matter, eliminates black smoke for inland waterway vessels, fishing boats and marine auxiliary gensets. Metallic DPF is preferred for heavy vibration marine conditions.
3. DOC / POC: Removes CO and HC, handles low-level particulate pollutants, compact structure ideal for retrofitting small marine engines.
4. Integrated DOC+SCR / SCR+DPF System: All-in-one exhaust treatment solution to remove NOₓ, PM, CO and HC simultaneously for new shipbuilding or vessel retrofit projects.
Value & Significance:
Green Valley marine exhaust aftertreatment systems are constructed with anti-corrosion materials to withstand offshore salt fog, vibration and fluctuating exhaust temperatures. The closed-loop intelligent control system maintains stable performance under variable load conditions. The systems comply with coastal emission limits and help improve air quality in ports and coastal zones.
