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首页> 外文会议>US Combustion Meeting; 20070325-28; San Diego,CA(US) >The carbonyl emissions from petroleum diesel and a biodiesel blend
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The carbonyl emissions from petroleum diesel and a biodiesel blend

机译：石油柴油和生物柴油混合物的羰基排放

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Biodiesel is currently made from vegetable oils or (and) animal fats through the transesterification reactions to triglycerides into ester forms, mainly as methyl esters. As a renewable, biodegradable and non-toxic fuel, biodiesel has been more and more applied to daily usage. Compared to diesel fuel, biodiesel combustion produces less atmospheric pollutants in the following categories, such as inorganic gaseous pollutants, particular matters, and polycyclic aromatic hydrocarbons (PAHs). However, there is little study on carbonyl compounds emitted from biodiesel fuel till now. Carbonyl compounds are irritants to the eyes and respiratory systems, and some, such as formaldehyde, are probable human carcinogens. In this study, carbonyl compounds emissions from petroleum diesel and biodiesel fuels were evaluated. A stationary generator is used to burn petroleum diesel fuel and a mixture of diesel and biodiesel at a ratio of 1:1 (B50) separately. The generator can work under different loads, from 0 kw, which stands for the idle condition, to 75 kw, which represents the full load. The carbonyls are collected on cartridges coated with 2,4-dinitrophenylhydrazine (DNPH) by EPA TO-11A method and the samples are analyzed by high pressure liquid chromatography (HPLC). Formaldehyde, acetaldehyde and acetone are the common carbonyl pollutants from both petroleum diesel and biodiesel fuels and several more carbonyls are found in diesel samples. The total carbonyls emitted from biodiesel are also higher than petroleum diesel. Emissions for different operating conditions are also compared.
机译：目前，生物柴油是由植物油或（和）动物脂肪通过酯交换反应将甘油三酸酯转化为酯形式（主要为甲酯）制成的。作为一种可再生，可生物降解和无毒的燃料，生物柴油已越来越多地应用于日常使用。与柴油燃料相比，生物柴油燃烧在以下类别中产生的大气污染物更少，例如无机气体污染物，特殊物质和多环芳烃（PAHs）。但是，到目前为止，关于生物柴油燃料中排放的羰基化合物的研究很少。羰基化合物对眼睛和呼吸系统有刺激性，某些化合物（例如甲醛）可能是人类致癌物。在这项研究中，评估了石油柴油和生物柴油燃料中的羰基化合物排放。固定发电机用于分别燃烧石油柴油和生物柴油与生物柴油的比例为1：1（B50）的混合物。发电机可以在不同的负载下工作，从代表空转状态的0 kw到代表满负载的75 kw。通过EPA TO-11A方法将羰基收集在涂有2,4-二硝基苯肼（DNPH）的柱上，并通过高压液相色谱（HPLC）分析样品。甲醛，乙醛和丙酮是石油柴油和生物柴油燃料中常见的羰基污染物，柴油样品中还发现了几种羰基污染物。生物柴油排放的总羰基也高于石油柴油。还比较了不同运行条件下的排放。

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