Materials and Metallurgical Engineering | Article | Published 2023
In the article, the thermodynamics, kinetics and mechanism of absorption of a mixture of sulfurous gases in alkaline solutions are considered. The result of thermodynamic analysis showed that the value of Gibbs energy of absorption of sulfur dioxide and trioxide into sodium hydroxide solution under standard conditions was negative. It was determined that the limiting step is the absorption of sulfur dioxide, and ways to increase the partial pressure of the gas were proposed to increase the reaction yield.