SOLVAir^® Products: Effective control of stack gas pollutants

Throughout the United States, SOLVAir^® Products from Solvay Chemicals, Inc. have helped control or eliminate stack gas pollutants in coal-fired power plants and industries such as glass, cement, waste incineration, precious metal refining, petroleum refining and pulp & paper. The SOLVAir Group offers the products and technical input needed to help your plant clear the air.

SOLVAir products and applications

SOLVAir Select 200 Trona is a high-assay, low-cost alternative to other acid neutralizers. Used as a dry sorbent injected into DSI (Dry Sorbent Injection) systems, Select 200 forms a safe, non-corrosive waste product that will not damage equipment. It is an effective technology for the removal of SO_X, HCl and Hg. In temperatures about 275°F, Select 200 is readily transformed into a high surface soda ash, which then reacts with acids to form neutral sodium salts. Select 200 removes SO₂, SO₃, Hg, HCl and HF at higher rates than lime. Field testing shows removal rates of SO₂ up to 90%. It has routinely achieved HCl removal of 95-99%. In addition, in some systems it has been able to remove 20-70% of Hg when used alone, and over 90% in combination with activated carbon. The mitigation rate of NO_X is about 10-20%.

SOLVAir Select SBC Sodium Bicarbonate is a safe, non-corrosive alternative for dry sorbent injection applications, effectively helping reduce acid gas stack emissions in coal-fired power plants, waste incinerators and industrial boilers.  Flexible in application and easy to handle, Select SBC reacts rapidly with acid gases to achieve very high levels of pollutant removal, and is effective over a wide range of operating temperatures. For example, Select SBC can be used in flue gas streams at temperatures between 270oF and 700oF.  Field testing shows removal rates of SO₂ as more than 90%. Select SBC has routinely achieved HCl removal of over 90%.  NO_X removal ranging between 10-20% has been observed during SO₂ abatement in DSI. The most important variables for high removal efficiency are injection temperature, concentration, sorbent particle size, mixing or dispersion of the sorbent into the gas stream.

SOLVAir Select SS Sodium Sulfite or SOLVAir Select SA Soda Ash is used in a proprietary process developed by Codan Development, LLC. They target SO₃ specifically in flue gases, and are low-cost alternatives to sodium bisulfite solution. SOLVAir Hydrogen Peroxide is used for scrubbing stack gases that contain SO₂ and NO_X or odors such as H2S, mercaptans and aldehydes.

Solvay Chemicals, Inc.

Solvay Chemicals, Inc., headquartered in Houston, Texas, provides essential and specialty chemicals to the North American marketplace. As part of the Solvay Group, we are a member of an international chemical and pharmaceutical group whose companies employ more than 29,000 people in 50 countries.