Protecting Seas & Oceans
Exhaust Gas Recirculation (EGR) technology has proven to be a highly effective method of reducing nitrogen oxide (NOx) emissions on marine vessels, ensuring compliance with stringent environmental regulations.
GEA provides solutions for the treatment of EGR bleed-off water before it is discharged overboard.
The combustion of fossil fuels on ships not only generates power but also releases harmful emissions, including carbon dioxide (CO2), sulphur oxides (SOx), nitrogen oxides (NOx) and soot. These pollutants contribute to environmental issues such as global warming, smog, acid rain and increased levels of fine particles. The impacts have far-reaching consequences for our planet and health.
To combat this, international regulations like IMO Tier II and Tier III have been implemented to control NOx emissions from ships operating on different fuel types. Ships operating outside and inside NOx emission control areas must adhere to specific NOx limits, especially when using low-sulfur (<0.1%) and high-sulfur (>0.5%) fuels.
Exhaust Gas Recirculation (EGR) effectively reduces NOx emissions and ensures compliance with IMO Tier III regulations for both diesel and gas operations. Engine manufacturers have developed engines equipped with EGR systems to accommodate a range of fuels, including heavy fuel oil (HFO), low-sulfur fuels, liquefied natural gas (LNG), and even methanol to meet IMO requirements.
The EGR process generates a byproduct: bleed-off water that requires treatment to meet stringent standards. This water must be treated to less than 15 PPM, which aligns with the requirement for bilge water.
Understanding the challenges faced by shipowners in meeting these water treatment requirements, GEA offers two innovative solutions: the GEA NOx Separator and the GEA bilgEGR Solution.
At GEA, we are committed to offering sustainable solutions that enable shipowners to navigate the waters with confidence, knowing that they are meeting regulatory standards and actively contributing to a cleaner maritime sector.
Together, we can drive the maritime sector towards a more sustainable and environmentally conscious future.
Other applications
What if your favorite chocolate didn’t require cocoa beans and your coffee was locally produced? As climate disruption, price hikes and ethical concerns hit two of our most beloved indulgences, scientists are reimagining how we produce them – using microbes, not monocultures. The goal: preserve the flavor and properties of coffee and chocolate while minimizing carbon emissions and improving food resilience.
Ports now compete not just on logistics, but on sustainability. At Greece’s Piraeus port, an advanced processing and recovery facility recycles ship waste oil into fuel. Equipped with GEA’s high-performance centrifuges, it sets a new benchmark for state-of-the-art, environmentally responsible port operations.
The 2022 CO2 shortage forced breweries to review their dependency on global supply chains. Many were forced to close, unable to carbonate their products. At its breweries in Germany, OeTTINGER GETRÄNKE is turning its own CO2 into a powerful lever for independence and sustainability – with the help of CO2 recovery technology from GEA.