Synthesis of calcium sulphate and sodium sulphate from waste stream of exhaust flue gases containing SO_2

摘要

This study presents synthesis of calcium sulphate and sodium sulphate from waste stream of exhaust flue gases containing sulphur di oxide (SO_2) and also compares efficiency of three different reagents [sodium hydroxide (NaOH), calcium hydroxide {Ca(OH)_2}, and waste product of water treatment plant containing CaO] in removal of SO_2. Pet coke with limestone was used for power generation in power plant during experiments. Pet coke (sulphur, 6%) resulted in emission of SO_2. Experiments have been conducted to trap SO_2 to produce sulphates.