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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/28665


    標題: Reducing Emissions of Persistent Organic Pollutants from a Diesel Engine by Fueling with Water-Containing Butanol Diesel Blends
    作者: Chang, Yu-Cheng
    Lee, Wen-Jhy
    Yang, Hsi-Hsien
    Wang, Lin-Chi
    Lu, Jau-Huai
    Tsai, Ying I.
    Cheng, Man-Ting
    Young, Li-Hao
    Chiang, Chia-Jui
    貢獻者: 環境資源管理系
    關鍵字: POLYCYCLIC AROMATIC-HYDROCARBONS
    DIBENZO-P-DIOXINS
    POLYCHLORINATED DIPHENYL ETHERS
    TOXIC EQUIVALENCY FACTORS
    ATMOSPHERIC ENVIRONMENTS
    PARTICULATE MATTER
    EXHAUST EMISSIONS
    BIODIESEL
    COMBUSTION
    ETHANOL
    日期: 2014-05
    上傳時間: 2015-05-06 21:24:23 (UTC+8)
    出版者: Amer Chemical Soc
    摘要: The manufacture of water-containing butanol diesel blends requires no excess dehydration and surfactant addition. Therefore, compared with the manufacture of conventional bio-alcohols, the energy consumption for the manufacture of water-containing butanol diesel blends is reduced, and the costs are lowered. In this study, we verified that using water-containing butanol diesel blends not only solves the tradeoff problem between nitrogen oxides (NOx) and particulate matter emissions from diesel engines, but it also reduces the emissions of persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons, polychlorinated dibenzo-p-dioxins and dibenzofurans, polychlorinated biphenyls, polychlorinated diphenyl ethers, polybrominated dibenzo-p-dioxins and dibenzofurans, polybrominated biphenyls and polybrominated diphenyl ethers. After using blends of B2 with 10% and 20% water-containing butanol, the POP emission factors were decreased by amounts in the range of 22.6%-42.3% and 38.0%-65.5% on a mass basis, as well as 18.7%-78.1% and 51.0%-84.9% on a toxicity basis. The addition of water-containing butanol introduced a lower content of aromatic compounds and most importantly, lead to more complete combustion, thus resulting in a great reduction in the POP emissions. Not only did the self-provided oxygen of butanol promote complete oxidation but also the water content in butanol diesel blends could cause a microexplosion mechanism, which provided a better turbulence and well-mixed environment for complete combustion.
    關聯: Environmental Science & Technology, v.48 n.10, pp.6010-6018
    Appears in Collections:[環境資源管理系(所)] 期刊論文

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