Desulfurization of power plants is carried out with a promise of highly reduced sulfur dioxide emissions from fossil fuel-burning electricity plants. This procedure's principal purpose is to remove sulfur compounds from flue gases so as not let them pollute our sky when flag ships all over the world pump out smoke. Technological features include the use of certain absorbents, such as limestone or lime slurry, to react with sulfur dioxide and produce solid side-products such as gypsum. Advanced systems might use spray dryers or circulating fluidized bed absorbers for enhanced performance. Applications cover a wide spectrum of uses in coal, oil and gas power stations, achieving great effects in reducing environmental impacts: air pollution decreases correspondingly not only lowers negative health risks and also grabs with both hands the chance for future generations. The process not only helps to meet environmental regulations, but also reduces costs associated with the harm and cleaning up of sulfur-based pollutants.