Sodium sorbents in DSI reduce the Blue Plume … and more!

Advances in Dry Sorbent Injection technology (DSI) and sodium sorbent effectiveness have resulted in DSI playing a major role in helping mitigate the “Blue Plume”, which is formed any time sulfur-containing fuels are burned.

SOLVAir Select trona or sodium bicarbonate, when used as a dry sorbent injected into an exhaust duct, quickly reacts with the SO3 , reducing the Blue Plume both effectively and economically. 

As an added benefit, removal of SO3 can lead to adsorption of Hg on the unburned carbon in the fly ash, which will result in better efficiency of PAC used for Hg removal.  Additionally, recent tests have demonstrated that removing SO3 before the SCR at levels lower than 5 ppm enables plants to operate  the boilers at lower loads by removing the possibility of harmful chemicals forming on the catalyst. This allows plants to operate with an overall higher thermal efficiency. The result…important cost savings!

Call Marilyn Treacy today at 303.489.9183 or go to our Library on for more detailed information on the Blue Plume, and our products and services.

Target Pollutants
For over 30 years, SOLVAir Select trona and sodium bicarbonate have helped eliminate or control SO2, SO3 (SOx), HCl and mercury (Hg) control in acid gas emissions. Our understanding of regulatory compliance, expertise in Dry Sorbent Injection, and our ongoing independent field tests help customers meet their compliance goals, both effectively and cost-effectively.

Industries Served
From coal-fired power plants, cement, biomass and energy-from-waste plants to industrial boilers and waste incinerators, SOLVAir trona or sodium bicarbonate in a Dry Sorbent Injection system has effectively helped reduce or eliminate SO2, SO3 and HCl.

SOLVAir® Products
SOLVAir Products, including SOLVAir Select 200 and 150 trona, and Select 300 and 350 sodium bicarbonate, are the direct approach for air pollution control. Whether in wet or dry scrubbers or Dry Sorbent Injection (DSI) systems, these are the products your plant needs to clear the air.

The Responsible Care® Initiative
We are committed to sustainable development through the Responsible Care initiative, a policy adhered to by all Solvay companies, in every country in which Solvay has a presence. The Responsible Care initiative underscores our focus on continuous improvement in the health, safety and environment of our planet.

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SOLVAir Solutions

3737 Buffalo Speedway, Suite 800

Houston, TX 77098


Phone: 303-489-9183

Contact: Marilyn Treacy Stone