METHOD AND APPARATUS FOR TREATING EXHAUST GAS

摘要

A method for treatment of an exhaust gas wherein sulfur oxides contained in the exhaust gas is removed by using ammonia, characterized in that ammonia is injected into an exhaust gas containing sulfur oxides to react the sulfur oxides with ammonia, to thereby form ammonia derivatives containing ammonium sulfate, the formed ammonia derivatives are recovered, and then the exhaust gas after the recovery is contacted with an absorbing solution, to thereby remove residual sulfur oxides and/or ammonia contained in the exhaust gas; and an apparatus for use in the method.