Marine DeSOx

Advanced exhaust gas cleaning systems for marine diesel engines (EGCS) specifically designed for SOx removal in large vessels -cruise ships, ferries, cargos and tankers with single or multiple engines.

With hundreds of successful ECO-EGCTM systems installed and certified, we have developed one of the largest portfolio in the industry, becoming one of the world’s largest marine EGCS makers. Thanks to hundreds of thousands of hours of operation, our systems are reliable, time-tested, and with proven performance.

Based on a proprietary multi-pollutant technology, our EGCS are flexible, compact and easy to install.  Available in different configurations – open loop, closed loop and hybrid – they are able to meet compliance needs for both, 0.1% for ECAs and 0.5% for the 2020 Global Sulfur Cap and represent the most convenient option to comply with and exceed applicable international regulations.

With the ECO-EGCTM systems we ensure a lower environmental impact, in terms of emissions and wash water, compared to the use of other compliant fuels.


The ECO-EG™ OPEN LOOP system uses only seawater to neutralize the SO2 contained in the exhaust gas, without the use of chemical agents.

The open loop option is characterized by simplicity and flexibility both in terms of installation, thanks to a limited number of components, and in terms of operation and maintenance.

The inline DeSOx tower (scrubber), made in corrosion resistant alloy, can operate either in wet or dry conditions. The OPEN LOOP system represents the most cost-effective solution in terms of CAPEX and OPEX in order to meet sulfur regulations[...]


The ECO-EGC™ HYBRID system is a high-performance solution purposely designed to meet specific requirements in terms of wash water discharge. The ECO-EGC™ HYBRID system can operate either in open-loop or closed loop-mode.

In open-loop, the SO2 removal is controlled only by sea water injection, while in closed loop the SO2 removal is controlled by the addition of a reagent (caustic soda or sodium carbonate) to the wash water.

The ECO-EGC™ HYBRID system can easily switch between operating in open-loop and closed-lope mode.

In closed-loop[...]

Do you need further information?

Discover all the solutions that Ecospray can offer. Download the brochure to learn more about technologies and application fields!


  • Marine DeSOx
  • Marine DeNOx
  • Marine Filtration


  • Industry DeNOx
  • Industry DeSOx
  • Industry Filtration
  • Fogging
  • Gas Cooling
  • Industry Liquefation


  • BIOGAS Upgrading
  • Liquefaction

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