| 摘要 |
Provided is a marine diesel engine exhaust gas treatment system capable of reliably removing a particulate matter and sulfur oxides contained in exhaust gas emitted from a marine diesel engine. The marine diesel engine exhaust gas treatment system includes: an electrostatic precipitator apparatus (7) that collects a PM of exhaust gas emitted from the marine diesel engine; a seawater scrubber (9) that sprays seawater to the exhaust gas from which the PM is removed by the electrostatic precipitator apparatus, to remove SOx from the exhaust gas; an exhaust gas component detector (LA3) that detects a component of the exhaust gas treated by the electrostatic precipitator apparatus and the seawater scrubber; a seawater component regulator (9C) that recovers the seawater sprayed by the seawater scrubber, to perform component regulation on the recovered seawater; a seawater circulator (9D) that returns, to the seawater scrubber, the seawater that is subjected to the component regulation by the seawater component regulator; and an exhaust gas treatment controller that regulates an operating state of the electrostatic precipitator apparatus and an operating state of the seawater scrubber in such a manner that a component remaining in the exhaust gas that is detected by the exhaust gas component detector falls within a prescribed range. |
