A proven process adapted to maritime transport

Taking a proven solution from land to the seas

Serving more than 500 satisfied customers for flue gas treatment on land and considering the new requirements of the International Maritime Organization (IMO) regulations for 2020 and beyond, SOLVAir® has extended its portfolio with a sodium-based dry scrubber solution to clean exhaust gases from vessels running on High Sulphur Heavy fuel Oil (HFO) diesel engines.

A continued focus on sustainability

The project was carried by experienced and passionate engineers and managers, and received full support from the SOLVAY Group.

Sustainability is at the heart of Solvay’s strategy and the SOLVAir® Marine dry scrubber is a truly sustainable solution we are proud to develop and promote for the marine industry.

Pascal Chalvon - Chief Sustainability Officer at Solvay.

What can SOLVAir® Marine do for you?

  • Till 100% of SOx removed, and more

    SOLVAir Marine-Dry scrubber for vessels

The SOLVAir® Marine flue gas treatment solution will help you achieve desired removal rates for SOx. It also offers an unmatched  particle removal rate of 99%.

  • A dry process for more sustainability

With SOLVAir® Marine’s solution, no effluents are released into the sea and residues are treated on land.

  • A non-toxic product for more safety

The sodium-based sorbents used in our exhaust gas cleaning  system are non-corrosive, non-irritant, and non-toxic. They are therefore safe to handle, which will make life easier for operators.

  • Easy installation, no dry docking

Installing the SOLVAir® dry scrubber is quick and doesn’t require dry docking. There are also significant synergies with Selective Catalytic Reduction (SCR) Denox.

  • No heavy investment required

No energy for pumping wash water is needed. Moreover, this is an adaptable solution that allows vessels to sail in and out of areas having different SOx regulations without changing their fuel type.


How does our flue gas treatment solution for vessels work?

Infographie_SOLVAir Marine-2019
  1. The sodium sorbent is loaded onto the ship and stored in silos onboard.
  2. During operation, the sorbent is injected into the vessel’s exhaust gas. The sodium sulfate residue resulting from a reaction with the SOx in the exhaust gas is filtered out in the vessel’s funnel - along with other particles such as micro pollutants, soot, etc.
  3. The residue is collected and stored in the onboard silos, until it’s disembarked to be treated on land.


SOLVAir® Marine is supported by Solvay’s global reach


Dry Scrubber & Wet Scrubber

What is the difference between a dry scrubber and a wet scrubber?

A “wet scrubber” is a process that uses sea water in a scrubber tower to reduce a vessel’s pollutant emissions. In this scenario, the used water containing sulfates and other elements (metals, soot…) is released back into the sea (in an “open loop” system) or stored on the ship (in a “closed loop”).

A dry scrubber, at it name implies, doesn’t use any water. SOLVAir®’s dry system is a flue gas treatment solution that uses a sodium-based sorbent that removes up to100% of SOx and over 99% of particles. No waste, residue or pollutants are released into the air or the sea thanks to SOLVAY’s residue treatment process on land.

Why choosing a dry scrubber?

  • It offers a higher particle removal rate (over 99%) than a wet scrubber

  • No dry docking required for installation

  • It can be combined with Selective Catalytic Reduction (SCR) DeNOx for significant synergies

  • Lower CAPEX and OPEX

  • Lower sensitivity to failure

  • Less labor required for maintenance and operation

  • It’s safer, thanks to the non toxicity of the sorbent

  • No effluents are released into the sea

  • Residues can be treated on land

Let's play! SOLVAir® is a  flue gas removal process as easy as 1-2-3!

Choose the right answers: 

1 - The sodium-based sorbent…

A - can be delivered on land or by silo barge

B - is manufactured by SOLVAY

C- is stocked in a silo on your vessel

2 - In the SOLVAir® dry scrubber process…

D - the sodium-based sorbent is injected directly into the exhaust of your HFO Diesel engine

E - no pump and no water are required

F - the final exhaust released is compliant with all emissions regulations

G - 100 % of the residue is collected

3 - About residue treatment:

H - Residue is collected in a specific silo onboard

I - Residue is disembarked in the harbour or by silo barge to be treated on land

J - 100 % of the SOx residue can be retreated

Answers : Tick A, B, C, D, E, F, G, H, I, J