| 基于车载测试的重型柴油车尾气典型烷烃排放特征 |
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| 引用本文： | 史纯珍,郝雪薇,申现宝,曹鑫悦,张伟,吴辉,姚志良. 基于车载测试的重型柴油车尾气典型烷烃排放特征[J]. 环境科学, 2017, 38(8): 3146-3152 |
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| 作者姓名： | 史纯珍 郝雪薇 申现宝 曹鑫悦 张伟 吴辉 姚志良 |
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| 作者单位： | 北京工商大学食品学院环境科学与工程系, 北京 100048,北京工商大学食品学院环境科学与工程系, 北京 100048,北京工商大学食品学院环境科学与工程系, 北京 100048,北京工商大学食品学院环境科学与工程系, 北京 100048,北京工商大学食品学院环境科学与工程系, 北京 100048,北京工商大学食品学院环境科学与工程系, 北京 100048,北京工商大学食品学院环境科学与工程系, 北京 100048 |
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| 基金项目： | 国家自然科学基金项目（21407006） |
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| 摘 要： | 本文采用车载排放测试系统对11辆国Ⅰ~国Ⅳ标准重型柴油车进行实际道路测试,利用GC-MS对样品中典型烷烃进行定量分析,解析重型柴油车尾气典型烷烃排放特征及规律.结果表明,排放标准对重型柴油车尾气中正构烷烃、藿烷类有机物排放有显著影响,总体呈现随排放标准的加严而降低的趋势,相比于国Ⅰ测试车辆,国Ⅳ测试车辆正构烷烃、17α(H),21β(H)-C30藿烷(C30-藿烷)、22S-和22R-17α(H),21β(H)-C31升藿烷(22S-C31升藿烷;22R-C31升藿烷)总排放因子分别降低了72.23%,64.95%,70.78%和74.68%.气相正构烷烃呈双峰前锋型,以C17~C18为主峰碳,固相呈单峰前锋型,以C18~C21为主峰碳.藿烷类有机物其22S-C31升藿烷/(22S-C31升藿烷+22R-C31升藿烷)的比值在0.46~0.56之间,平均值为0.50,符合石油中藿烷的分布特征.正构烷烃总排放因子与17α(H),21β(H)-C30藿烷总排放因子呈现出一定的线性关系,其R~2为0.926 8.此外,行驶工况对测试车辆正构烷烃及藿烷类有机物排放有较大影响,非高速工况下排放因子是高速工况的1.69~2.42倍.
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| 关 键 词： | 重型柴油车 车载排放测试系统（PEMS） 正构烷烃 17α（H），21β（H）-C30藿烷 22R-17α（H），21β（H）-C31升藿烷 22S-17α（H），21β（H）-C31升藿烷 |
| 收稿时间： | 2017-05-17 |
| 修稿时间： | 2017-06-06 |
Exhaust Emission Characteristics of Typical Alkanes from Heavy-Duty Diesel Vehicles Based on a Portable Emission Measurement System |
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| SHI Chun-zhen,HAO Xue-wei,SHEN Xian-bao,CAO Xin-yue,ZHANG Wei,WU Hui and YAO Zhi-liang. Exhaust Emission Characteristics of Typical Alkanes from Heavy-Duty Diesel Vehicles Based on a Portable Emission Measurement System[J]. Chinese Journal of Environmental Science, 2017, 38(8): 3146-3152 |
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| Authors: | SHI Chun-zhen HAO Xue-wei SHEN Xian-bao CAO Xin-yue ZHANG Wei WU Hui YAO Zhi-liang |
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| Affiliation: | Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China,Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China,Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China,Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China,Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China,Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China and Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China |
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