...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Policy >Microalgal biodiesel and the Renewable Fuel Standard's greenhouse gas requirement
【24h】

Microalgal biodiesel and the Renewable Fuel Standard's greenhouse gas requirement

机译：微藻生物柴油和可再生燃料标准的温室气体要求

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Renewable Fuel Standard (RFS2) under the Energy Independence and Security Act of 2007 requires 15.2 billion gallons of domestic alternative fuels per year by 2012, of which 2 billion gallons must be from advanced biofuel and emit 50% less life-cycle greenhouse gas (GHG) emissions than petroleum-based transportation fuels. Microalgal biodiesel, one type of advanced biofuel, has the qualities and potential to meet the RFS's requirement. A comparative life cycle assessment (LCA) of four microalgal biodiesel production conditions was investigated using a process LCA model with Monte Carlo simulation to assess global warming potential (GWP), eutrophication, ozone depletion and ecotoxicity potentials. The four conditions represent minimum and maximum production efficiencies and different sources of carbon dioxide and nutrient resources, i.e. synthetic and waste resources. The GWP results of the four CO_2 microalgal biodiesel production conditions showed that none of the assumed production conditions meet the RFS's GHG requirement. The GWP results are sensitive to energy consumption in harvesting process. Other impacts such as eutrophication, ozone depletion and ecotoxicity potentials, are sensitive to percent lipid content of microalgae, service lifetime of PBRs and quantity of hexane in extraction process, respectively. Net energy ratio and other emissions should be included in future RFS for a more sustainable fuel.
机译：根据2007年《能源独立与安全法》的可再生燃料标准（RFS2），到2012年每年需要152亿加仑的国内替代燃料，其中20亿加仑必须来自先进的生物燃料，并且排放的生命周期温室气体减少50％（ GHG）排放量要高于石油基运输燃料。微藻生物柴油是一种高级生​​物燃料，具有满足RFS要求的质量和潜力。使用具有蒙特卡洛模拟的过程LCA模型研究了四种微藻生物柴油生产条件的比较生命周期评估（LCA），以评估全球变暖潜势（GWP），富营养化，臭氧耗竭和生态毒性潜能。这四个条件代表了最低和最高生产效率以及二氧化碳和营养资源（即合成和废物资源）的不同来源。四种CO_2微藻生物柴油生产条件的GWP结果表明，假设的生产条件均未满足RFS的GHG要求。全球升温潜能值的结果对收获过程中的能耗很敏感。其他影响（例如富营养化，臭氧消耗和生态毒性潜力）分别对微藻的脂质含量百分比，PBR的使用寿命和萃取过程中的己烷量敏感。净能比和其他排放物应包括在未来的RFS中，以获得更可持续的燃料。

著录项

  • 来源
    《Energy Policy》 |2012年第7期|p.498-510|共13页
  • 作者

    Kullapa Soratana; Willie F. Harper Jr.; Amy E. Landis;

  • 作者单位

    Department of Civil and Environmental Engineering, University of Pittsburgh, 949 Benedum Hall, Pittsburgh, PA 15261, USA;

    Department of Civil and Environmental Engineering, University of Pittsburgh, 949 Benedum Hall, Pittsburgh, PA 15261, USA;

    Department of Civil and Environmental Engineering, University of Pittsburgh, 949 Benedum Hall, Pittsburgh, PA 15261, 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

    microalgal biodiesel; life cycle assessment; renewable fuel standard;

    机译：微藻生物柴油生命周期评估;可再生燃料标准;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号