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首页> 外文期刊>Jordan Journal of Mechanical and Industrial Engineering >Aldehyde and BTX Emissions from a Light Duty Vehicle Fueled on Gasoline and Ethanol-Gasoline Blend, Operating with a ThreeWay Catalytic Converter
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Aldehyde and BTX Emissions from a Light Duty Vehicle Fueled on Gasoline and Ethanol-Gasoline Blend, Operating with a ThreeWay Catalytic Converter

机译：使用ThreeWay催化转化器的汽油和乙醇-汽油混合物加油的轻型车辆的醛和BTX排放

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The current work is aimed at the experimental investigation of the aldehyde and BTX (benzene, toluene and Xylene) pollutants emitted from a light duty spark ignition (SI) vehicle fueled on gasoline and ethanol-gasoline blended fuel, operating with a three-way catalytic converter (TWC). At the same time, the specific reactivity (SR) of these pollutants has also been addressed in this paper. The experiments were performed on both transient as well as steady modes following the standard protocols recommended for light duty vehicles. Aldehyde and BTX species were analyzed using high performance liquid chromatography (HPLC) and gas chromatography/mass spectroscopy (GC/MS), respectively. During the transient cycle of operation, formaldehyde and BTX emissions were decreased, while acetaldehyde and acrolein+acetone pollutants were increased with (10% ethanol – 90% gasoline by volume), compared with E-0 (neat gasoline). During the steady modes, formaldehydes with E-0 were dominant to those with E-10 fuel. Acetaldehydes with E-10 showed dominancy to those with E-0, and were the most abundant components among the other aldehyde species. Formaldehydes were decreased with the increase in speed, and toluene was found to be the most abundant component of the BTX emissions with both the fuels. The BTX components displayed their maxima at lower speed mode and minima at medium speed mode for both the fuels, and were decreased in case of E-10, compared with E-0. The SR of the transient mode pollutants was lower as compared to that taken from the mean of the steady mode pollutants. In case of E-10, the SR of the pollutants was higher at both transient as well as steady modes, compare with E-0 fuel.
机译：当前的工作旨在对使用汽油和乙醇-汽油混合燃料的轻型火花点火（SI）车辆排放的醛和BTX（苯，甲苯和二甲苯）污染物进行实验研究，该汽油和乙醇/汽油混合燃料采用三元催化转换器（TWC）。同时，本文还讨论了这些污染物的比活性（SR）。按照针对轻型车辆推荐的标准协议，在瞬态和稳态模式下进行了实验。分别使用高效液相色谱（HPLC）和气相色谱/质谱（GC / MS）分析乙醛和BTX种类。在过渡运行期间，与E-0（纯汽油）相比，甲醛的释放量和BTX排放量减少了，而乙醛和丙烯醛+丙酮的污染物排放量增加了（10％乙醇– 90％汽油）。在稳定模式下，具有E-0的甲醛比具有E-10燃料的甲醛占优势。具有E-10的乙醛比具有E-0的乙醛占优势，并且是其他醛类中含量最高的组分。甲醛随着速度的增加而减少，并且发现甲苯是两种燃料中BTX排放中最丰富的成分。对于两种燃料，BTX组件在低速模式下均显示其最大值，在中速模式下均显示其最小值，并且在E-10的情况下，与E-0相比，BTX组件有所降低。瞬态污染物的SR比稳态污染物的SR低。在E-10的情况下，与E-0燃料相比，在瞬态和稳态模式下污染物的SR都更高。

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