| 摘要 |
<p>The invention concerns a method and an equipment (10) for recovery and treatment of sulphur dioxide (SO2) contained in exhaust gases. In the method, the flue gases are passed as a flow (13) into the washer part (11), and the sulphur dioxide (SO2) contained in the flue gases is dissolved into the washing liquid passed into the washer part (11). The mixture that contains sulphur dioxide (SO2) and that has been dissolved into the washing liquid is passed along a flow line (17) into a liquid container (12). The mixture that is placed in the liquid container (12) and that contains sulphur dioxide (SO2) is oxidized at a pressure of free choice, by means of a gas, preferably air, that is placed in the liquid container (12) and that contains oxygen (O2), into sulphur trioxide (SO3), which forms sulphuric acid (H2SO4) together with the water present in the liquid container (12).</p> |
