| abstract |
An engine exhaust gas treatment system. The engine exhaust gas treatment system comprises an exhaust gas dust-removal system and an exhaust gas ozone purification system; the engine exhaust gas ozone purification system comprises an ozone amount control device (209) for controlling the ozone amount so as to effectively oxidize gas components to be treated in the exhaust gas; the ozone amount control device (209) comprises a control unit (2091). The ozone amount control device (209) further comprises an unit (2092) for component detection of exhaust gas before ozone treatment for detecting exhaust gas component content before ozone treatment. The unit for component detection of exhaust gas before ozone treatment comprises a first volatile organic compound detection unit (20921), a first CO detection unit (20922) or a first oxynitride detection unit (20923). The engine exhaust gas treatment system can effectively remove particulate matters in engine exhaust gas, and has a better purifying treatment effect for the engine exhaust gas. |