
Darpreet Singh
The principle is quite straightforward: A sodium-based sorbent is injected straight into the exhaust, where it reacts with the noxious molecules generated by combustion (in what’s called flue gases) such as Hydrochloric Acid (HCl), Sulfur Trioxide (SO3), Sulfur Dioxide (SO2), Nitrogen Oxides (NOx), but also dioxins, particulates and heavy metals. The resulting sodium chemicals can then be easily captured by a filter and removed from the facility’s emissions with rates that can reach up to 99% for SOX, for example.
Noxious gas reduction: environmental & business sustainability combined
Water and air, the two essential fluids on which all life depends, have become global garbage cans.
Because of all this, the Solar Impulse Foundation, created by Bertrand Piccard, the Swiss pilot who in 2016 flew around the world powered only by solar energy, added SOLVAir® to its list of Efficient Solutions, a selection of 1,000 products, services and technologies “that protect the environment in a profitable way.”
This is the second time a Solvay solution has been awarded the World Alliance’s label, following the bio-based and non-toxic biostimulant Agrho GSB® earlier this year. “The selected solutions have to be technologically viable, scientifically proven and liable to be economically successful, on top of having an undeniable environmental benefit,” explains Guy-Noël Sauvion, Fellow Scientist at Solvay’s Research & Innovation department, and as such, one of the experts who take part in the assessment of candidate solutions for the Foundation’s labeling. “Thanks to our Sustainable Portfolio Management system (SPM), Solvay is well positioned to submit technologies and services likely to be labeled as Efficient Solutions, and conversely, the Foundation provides us with an external and objective point of view on our solutions, which is always beneficial.”