机动车甲醛排放检测技术及排放水平研究

Research on Formaldehyde Emission Detection Technology and Emission Level of Motor Vehicles

摘要: 基于甲醛检测技术及标准的调研，针对国五汽油车和甲醇车开展污染物比对试验，发现甲醇汽车的CO和THC排放低于汽油车，NOx排放与汽油车大体相当，PM排放显著降低；甲醛排放比汽油车高。且随着车辆行驶里程的增加，在用甲醇汽车甲醛和氮氧化物排放会有较大程度的升高，颗粒物排放明显下降。

Abstract: Based on the investigation of formaldehyde detection technology and standards, pollutant compari-son tests were conducted for National V gasoline vehicles and methanol vehicles, and it was found that CO and THC emissions of methanol vehicles were lower than gasoline vehicles, NOx emissions were roughly equivalent to gasoline vehicles, and PM emissions were significantly lower; formal-dehyde emissions were higher than gasoline vehicles. And with the increase of vehicle mileage, formaldehyde and NOx emissions of in-use methanol vehicles will increase to a larger extent, and particulate matter emissions will decrease significantly.