| 摘要 |
PURPOSE:To allow exhaust gas to pass through an oil mist capturing device if oil mist is contained in the exhaust gas and thereby realize the efficient capturing of the oil mist by providing the oil mist capturing device in an exhaust gas flow path between a denitrification device and an exhaust gas generation source. CONSTITUTION:A denitrification device 3 is arranged in the downstream of an exhaust gas generation source where oil mist is mixed with the exhaust gas when a diesel engine 1 is started. An oil mist capturing device 7 is arranged in an exhaust gas flow path between the denitrification device 3 and the exhaust gas generation source. If the exhaust gas contains the oil mist, it is allowed to pass through the oil mist capturing device 7. Consequently, the oil mist can be captured efficiently, and if such a capturing is no longer necessary, the whole plant efficiency can be maintained at a high level without deteriorating the denitrification efficiency of the denitrification device located in the downstream. |
