Apparatus for removing sulfur from sulfur containing gases

摘要

Apparatus for treating acid gas-containing flue gases to remove acid gases therefrom. Apparatus in accordance with the present invention include a device for heating an admixture of calcium alkali and calcium-reactive silica and/or alumina to above ambient temperatures for a period of time so as to facilitate the formation of acid gas-absorbing calcium silicates or aluminates. These apparatus further include a chamber for receiving activated absorbing components from the heater chamber wherein the activated absorbing component is admixed with gas to allow absorption of acid components therefrom. After absorption of acid components from the gas, the apparatus separates the treated gas from the spent absorbing component. Examples disclosed herein demonstrate the utility of these apparatus in achieving improved sulphur-absorbing capabilities. Additionally, disclosure is provided which illustrates preferred configurations for use in connection with coal-fired generating plants.