Gas-liquid contacting apparatus

摘要

A gas-liquid contacting apparatus for removing sulfur dioxide from a flue gas is provided which comprises a vessel for receiving therein a liquid aqueous absorbent in a continuous phase; gas sparger means having an opening means at one end thereof, the gas sparger means extending vertically from above the surface of the aqueous absorbent liquid and through the surface such that the opening means is positioned below the surface wherein the opening means comprises notch means formed in the side walls of the gas sparger means and an open end of the gas sparger means; air sparger means in the aqueous absorbent, below the gas sparger means; outlet means for the gas after it contacts the aqueous absorbent, the outlet means being located above the level of the aqueous absorbent; reactant inlet means into the vessel; aqueous absorbent inlet means into the vessel; and outlet means for the reaction products and spent aqueous absorbent.