| 生物柴油对柴油机排放细颗粒物及其中多环芳烃的影响 |
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| 引用本文： | 谭吉华,石晓燕,张洁,贺克斌,马永亮,葛蕴珊,谭建伟.生物柴油对柴油机排放细颗粒物及其中多环芳烃的影响[J].环境科学,2009,30(10):2839-2844. |
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| 作者姓名： | 谭吉华 石晓燕 张洁 贺克斌 马永亮 葛蕴珊 谭建伟 |
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| 作者单位： | 1. 清华大学环境科学与工程系,北京,100084
2. 北京理工大学汽车动力性与排放测试国家专业实验室,北京,100081 |
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| 基金项目： | 国家杰出青年基金项目(2006AA06A305);;国家自然科学基金项目(20807025) |
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| 摘 要： | 在柴油发动机台架上,考察普通柴油和2种原料不同的生物柴油(B100-1,大豆油为原料;B100-2,废油为原料)在2个固定转速不同负荷的4个工况点的细颗粒物PM2.5及其中多环芳烃(PAHs)的排放特性.用石英滤膜采集了尾气中的细颗粒物,并用GC/MS分析了颗粒物中的PAHs.生物柴油在高负荷时降低了柴油机PM2.5的排放速率,最大降幅达到了37.3%,在低负荷情况下增加了PM2.5排放速率.在所测试的工况下,生物柴油的颗粒相PAHs的排放速率较普通柴油均有不同程度的降低,最大降幅达到77.6%.生物柴油不但降低了PAHs的排放速率,还降低了PAHs在PM2.5中的质量百分比.B100-2的PM2.5和PAHs的平均排放速率比B100-1分别增加14.7%和17.8%.3种燃料排放PM2.5中的PAHs的主要化合物相似,均以小分子量为主,其中以菲的含量最高,2~3环PAHs超过总排放50%.生物柴油排放的PAHs毒性当量与柴油相比有较大程度地下降.
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| 关 键 词： | 生物柴油 多环芳烃 细颗粒物 柴油机排放 |
| 收稿时间： | 2008/11/15 0:00:00 |
| 修稿时间： | 2009/1/19 0:00:00 |
Effects of Biodiesel on Fine Particles (PM2.5) and Polycyclic Aromatic Hydrocarbons from Diesel Engine |
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| TAN Ji-hu,SHI Xiao-yan,ZHANG Jie,HE Ke-bin,MA Yong-liang,GE Yun-shan and TAN Jian-wei.Effects of Biodiesel on Fine Particles (PM2.5) and Polycyclic Aromatic Hydrocarbons from Diesel Engine[J].Chinese Journal of Environmental Science,2009,30(10):2839-2844. |
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| Authors: | TAN Ji-hu SHI Xiao-yan ZHANG Jie HE Ke-bin MA Yong-liang GE Yun-shan and TAN Jian-wei |
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| Institution: | 1.Department of Environmental Science and Engineering;Tsinghua University;Beijing 100084;China;2.National Laboratory of Auto Performance and Emission Test;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | PM_(2.5) emissions and polycyclic aromatic hydrocarbons(PAHs) in PM_(2.5) of pure biodiesel derived from different feedstocks were investigated and compared with diesel fuel.B100-1(soyabean oil derived),B100-2(waste oil derived) and diesel fuel were tested on a diesel engine bench at four operating conditions,including two steady speeds of different loads.The fine particles were collected by fiber quartz filter and particle phase PAHs were analyzed by GC-MS.Compared with diesel fuel,biodiesel decreased PM_(... |
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| Keywords: | biodiesel polycyclic aromatic hydrocarbons(PAHs) PM_2 5 diesel engine emission |
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