| 摘要 |
A method of, and an apparatus for, desulfurizing an exhaust gas comprising cooling an exhaust gas containing sulfur oxides to a temperature higher than a water saturation temperature but not higher than 80 degrees C by a gas cooling apparatus (3), guiding the exhaust gas to a a reactor (4), spraying aqueous ammonia from a two-fluid nozzle (12) to the exhaust gas inside the reactor (4) as to convert the sulfur oxides in the exhaust gas to powdery ammonia compounds, and collecting the powdery ammonia compounds by a dust collector (6). When aqueous ammonia is sprayed to the ammonia gas, aqueous ammonia is fined to droplets of a Sauter's mean diameter of 0.5 to 30 micrometers. 14 claims, 8 figures
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