SodaFlexx Dry Marine Scrubber System

Next generation solution

Green and cost effective, N-Flexx is our patented exhaust gas desulphurization system. Use this next generation solution as an add-on or an alternative to a wet scrubber. It’s approved by environmental agencies and flag states. So, your ship can travel in ports and Emission Controlled Areas, while sailing on HSFO.

NaHCO3 injection point in the exhaust duct of the N-Flexx system on board

Cutaway of a vessel showing the N-Flexx system layout: sorbent silo, dosing tank, injection blower, injection point in the exhaust duct, control cabinet and CEMS

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The N-Flexx components

1 Storage

The SOx – Neutralizer (NaHCO3) is stored in a fit-for-purpose silo.
2 Dosing tank

The main storage silos automatically fill the dosing tank, which is fitted with an agitator. This ensures the SOx – Neutralizer flows freely to the dosing auger.
3 Injection blower

A continuous air stream transfers the powder absorbent to the injection nozzle. This is supplied by a high performance triple stage blower.
4 Dosing device

This device efficiently doses the NaHCO3 directly into the airstream.
5 Injection point

The NaHCO3 is injected via an injection nozzle directly into the exhaust gas stream.
6 Constant gas measurement

The CEMS constantly monitors the ratio between SOx and CO2. This system self-adjusts to ensure IMO Compliance.
7 Control system

For optimum dosing, the system takes inputs from the engine fuel rack and the CEMS. Data is securely stored.

How the technology works

Powder storage

A storage tank for the powder absorbent can be integrated onboard your ship or placed in a 20-foot container outdoors.

Dry powder injection

By injecting a sodium bicarbonate powder absorbent into our N-Flexx® exhaust desulphurization system, the sulphur component is neutralized (SOx).

Chemical reaction

A chemical reaction occurs, which converts SOx into a highly stable non-toxic salt – Sodium Sulphate (Na2SO4). This salt can be safely released into the air or captured and recycled ashore.

Gas measurement

SodaFlexx includes a Continuous Emission Monitoring System, which measures the ratio between SOx and CO2. This system self-adjusts to ensure that exhaust gasses comply with IMO Regulations.

Benefits

Safe to store, easy to handle, environmentally friendly

Solvay, the pioneering chemical firm, developed a sodium-based sorbent powder to use with the N-Flexx. By injecting this sorbent powder into exhaust gasses, the sulphur component is neutralized. The sorbent powder is safe to store, easy to handle and environmentally friendly.