南华大学学报（自然科学版）2025，Vol.39Issue(5)：30-39,10.DOI:10.19431/j.cnki.1673-0062.2025.05.004
燃油机动车掺氢对尾气中污染气体排放特征的影响
The Impact of Hydrogen Blending in Fuel-powered Vehicles on the Emission Characteristics of Pollutant Gases in Exhaust
摘要
Abstract
Through on-vehicle testing systems and laboratory instrument analysis,bench tests,this study systematically explored the influence of hydrogen blending technology on the emissions of conventional gaseous pollutants(CO,HC,NOx)and volatile organic compounds(VOCs)from light-duty gasoline vehicles(LDGV)and diesel vehicles(LDDT,HDDT).Seven test vehicles meeting the National IV and National V emission standards were selected for the experiment,including 3 gasoline vehicles,3 light-duty diesel vehicles,and 1 heavy-duty diesel vehicle.A portable emission measurement system was used to monitor the concentration of exhaust pollutants in real time,and a gas chroma-tography-mass spectrometry(GC-MS)instrument was employed to analyze the components of VOCs.The results showed that appropriate hydrogen blending(200～300 L/h)could significantly reduce the CO and HC emissions of gasoline vehicles(with reduction rates of 67.9%～92.6%and 85%～89.6%respectively).However,emissions increased because the premixed combustion of hydrogen shortened the ignition delay period,and the NOx emissions showed different trends due to variations in vehicle models and after-treat-ment technologies.The emission characteristics of VOCs indicated that the proportion of alkanes in gasoline vehicles increased significantly after hydrogen blending,while the change in the VOCs components of diesel vehicles was relatively small.关键词
机动车掺氢/排放特征/挥发性有机物(VOCs)Key words
hydrogen blending in motor vehicles/emission characteristics/volatile organic compounds分类
资源环境引用本文复制引用
李星,贺秋华,陈灿,刘湛,罗达通,刘陈,钟甜甜,潘岳国..燃油机动车掺氢对尾气中污染气体排放特征的影响[J].南华大学学报（自然科学版）,2025,39(5):30-39,10.基金项目
湖南省环保科研项目(HBKYXM-2023037) （HBKYXM-2023037）
