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首页> 外文期刊>Energy Policy >Regional life cycle assessment of soybean derived biodiesel for transportation fleets
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Regional life cycle assessment of soybean derived biodiesel for transportation fleets

机译：运输车队使用大豆衍生生物柴油的区域生命周期评估

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摘要

Although the life cycle environmental impacts of biofuels have been recently reported, studies that focus on specific regions and use real fleet data for the use phase are still lacking. In Pennsylvania, the Penn Security Fuels Initiative required 2% biodiesel (B2), effective on January 1, 2010, with higher blending levels required in the future if production thresholds are met. This study quantifies the environmental impacts of biodiesel blends to meet increasing regional biodiesel demand. A process life cycle model was developed using data collected from collaboration with Pennsylvania Department of Transportation. For PennDOT, both in-state and out-of-state production scenarios were analyzed to estimate the possible environmental impacts of biodiesel blends. The results show that fertilizer usage in the agricultural phase, soy oil extraction and refining, feedstock and fuel transportation, and fuel combustion in the use phase are main contributors to biodiesel's life cycle environmental impacts for all blends. Comparing biodiesels with ultra low sulfur diesel, significant environmental tradeoffs exist between global warming potential and eutrophication. For Pennsylvania, an in-state farming and processing preference has the lowest environmental impacts for B5. However, the limited area of farmlands in Pennsylvania may not satisfy the state's biodiesel needs with higher blending levels.
机译：尽管最近已报告了生物燃料对生命周期的环境影响，但仍缺乏针对特定区域并在使用阶段使用实际车队数据的研究。在宾夕法尼亚州，宾夕法尼亚安全燃料计划要求2％的生物柴油（B2），自2010年1月1日生效，如果达到生产阈值，则未来需要更高的混合水平。这项研究量化了生物柴油混合物对环境的影响，以满足日益增长的区域生物柴油需求。使用从与宾夕法尼亚州运输局的合作中收集的数据开发了流程生命周期模型。对于PennDOT，分析了州内和州外生产情景，以估计生物柴油混合物可能对环境造成的影响。结果表明，农业阶段的肥料使用，大豆油的提取和精炼，原料和燃料的运输以及使用阶段的燃料燃烧是生物柴油对所有混合物生命周期环境影响的主要因素。将生物柴油与超低硫柴油进行比较，全球变暖潜力与富营养化之间存在重大的环境折衷。对于宾夕法尼亚州，州内种植和加工偏爱对B5的环境影响最小。但是，宾夕法尼亚州有限的农田面积可能无法满足高掺混水平的州生物柴油需求。

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  • 来源
    《Energy Policy》 |2012年第9期|p.295-303|共9页
  • 作者

    Xiaobo Xue; William O. Collinge; Scott O. Shrake; Melissa M. Bilec; Amy E. Landis;

  • 作者单位

    Department of Civil & Environmental Engineering, University of Pittsburgh, PA 15260, USA;

    Department of Civil & Environmental Engineering, University of Pittsburgh, PA 15260, USA;

    Department of Civil & Environmental Engineering, University of Pittsburgh, PA 15260, USA;

    Department of Civil & Environmental Engineering, University of Pittsburgh, PA 15260, USA;

    School of Sustainable Engineering and the Built Environment, Arizona State University, 501 E. Tyler Mall, Tempe, AZ 85287, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    soybean biodiesel; life cycle assessment; transportation and environment;

    机译：大豆生物柴油生命周期评估;交通与环境;

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