低温等离子体净化尾气中的颗粒相多环芳烃  

Cleaning particle-phase polycyclic aromatic hydrocarbons of exhaust using non-thermal plasma technology

作　　者：马朝臣[1] 高建兵[1] 邢世凯[2] 杨文芳 MA Chaochen GAO Jianbing XING Shikai YANG Wenfang(School of Mechanical Engineering, Beijing Institute of Technology,Beijing 100081, China School of Vocational and Technical, Hebei Normal University, Shijiazhuang 050024, China Automotive Powertrain Co. , Ltd. , Beijing 101108 ,China)

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]河北师范大学职业技术学院,石家庄050024 [3]北京汽车动力总成有限公司,北京101108

出　　处：《环境工程学报》2017年第2期988-992,共5页Chinese Journal of Environmental Engineering

基　　金：河北省科技计划项目资助(15273703D)

摘　　要：利用低温等离子体(NTP)净化车用柴油机尾气中的颗粒相多环芳烃(PAHs),基于电晕放电的原理,设计了NTP发生装置。使用色谱质谱联用仪分析经过NTP净化前后柴油机尾气中颗粒相多环芳烃的含量,观察NTP对颗粒相多环芳烃的净化效果。结果表明,颗粒相小分子量PAHs除菲、蒽外,其他4种多环芳烃的含量显著增加,其中萘、苊变化率达1130.4%和758.57%;大分子量PAHs除苯并(ghi)芘外,多环芳烃的含量降低达80%以上;NTP对柴油机尾气中颗粒相多环芳烃含量及毒性当量的净化率分别达58.4%和82.8%。Particle-phase polycyclic aromatic hydrocarbon（ PAH） emissions from a diesel engine were purified with non-thermal plasma（ NTP） technology. The NTP reactor was designed based on a corona discharge. PAHs both with and without NTP were quantified with gas-chromatography mass spectrometry（ GC-MS）. The levels of PAHs were analyzed based on GC-MS results. The results showed that the content of PAHs increased greatly for light particle-phase PAHs except for Phe and An T. The increases in the percentage of Na P and Ac Py were1130. 4% and 758. 57%,respectively. The decrease in heavy PAHs exceeded 80%,except for Bghi P. The content and Ba Peqof the PAHs with and without NTP dropped to 58. 4% and 82. 8%,respectively.

关 键 词：柴油机 低温等离子体 多环芳烃 毒性当量 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]