SodaFlexx offers an alternative to traditional wet scrubbers. N-Flexx, our dry exhaust cleaning system, neutralises sulfur by injecting an absorbent into your exhaust gases. This absorbent, based on sodium bicarbonate, has been specially developed for us by Solvay. No air pollution and no water pollution. N-Flexx reduces sulfur emissions to zero and saves you 20-40% on fuel costs.




Our system does not use sea water, so you can also use it in ports and Emission Controlled Areas. And since it doesn’t need a lot of space, it is ideal for small and medium­ vessels. If you’re using a scrubber, N-­Flexx can make it hybrid ­ allowing you in ports and restricted waters using your existing fuel.

N­Flexx is a patented marine exhaust gas clean­ ing system. It is based on a proven technology, which has been used in power stations and waste­-to­-energy plants for decades. SodaFlexx offers you the most environmentally friendly and cost ­effective exhaust gas cleaning solution. We are approved by the members of IACS.


About SodaFlexx International


SodaFlexx International is an equipment innovator established in 2018 to provide the marine industry an alternative to traditional wet scrubbers. Our dry exhaust gas cleaning systems are adapted from proven land-based technology, and offer shipowners a cost-effective and quick-to-install option to save money by burning lower quality heavy fuel oils without polluting the air or water. In 2022, we acquired N-Flexx, a division of CargoFlexx, a powder handling specialist with over 60 years of experience. That expertise is now in-house and allows us to develop and improve our systems in the most efficient way possible.


The SodaFlexx EGCS absorbent handling and dosing equipment design is based on decades of experience in dry powder handling, and ensures that the system is dosed optimally and safely for the required emissions zone. No special construction standards exist for handling sodium bicarbonate, which simplifies the installation, and saves both time and money.



  • Highly cost-effective system typically 30% or less than an installed wet EGCS  
  • 4-6 months between a signed contract and sulphur-free emissions
  • Sulphur emission levels at 0.5% or 0.1%, depending on requirements or emission regulations
  • Using baking soda eliminates the need for high-alloy steel or unobtainium
  • SodaFlexx offers full turn-key installations, or we can supervise owners with their own installations
  • Installation does not require a dry dock or lengthy off-hire period

The SodaFlexx® EGCS dry powder unit injects sodium bicarbonate (NaHCO3) powder directly into the exhaust gas stream to neutralise sulphur compounds (SOx). In the heat and turbulence of the exhaust gas stream, a chemical reaction occurs converting SOx) to a highly stable and non-toxic salt – Sodium Sulphate (Na2SO4). This salt is released safely into the atmosphere (STANDARD) or can be captured by our bespoke cyclone Particulate Capture System (HYBRID) and recycled ashore. The SodaFlexx® EGCS can be connected to the main engine and also to auxiliary generators, boilers, and incinerators. The system is fitted to suit the individual ship, and can consist of bespoke storage units or pre-fabricated containerised and stackable units on a TEU footprint.

SodaFlexx Systems

SodaFlexx International offers multiple configurations to meet your specific needs: from fully-contained modular systems for container vessels to fully-customizable integrated systems with an optional Hybrid particulate capture unit.


Designed specifically for container vessels, the SodaFlexx patent-pending modular design houses most components in stackable 20-foot container footprints, helping you get up & running quickly


Integrated Sodium Bicarbonate absorbent storage solutions include vertically or horizontally mounted silos or bespoke storage systems designed to use existing tanks or void spaces

Logistics & Supply

Sodium bicarbonate is produced by many manufacturers and on all continents. SodaFlexx International is your partner for the global supply of sodium bicarbonate and residue disposal. We have established supply lines that allow us to provide just-in-time delivery of absorbent to most major ports. If required, we dispose of or recycle any residues captured by our hybrid systems. We offer delivery options via our custom stackable container units or can deliver/receive in pneumatic trucks or barges depending on the location.


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