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首页> 外文期刊>Environmental Science & Technology >Life-Cycle Fossil Energy Consumption and Greenhouse Gas Emissions of Bioderived Chemicals and Their Conventional Counterparts
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Life-Cycle Fossil Energy Consumption and Greenhouse Gas Emissions of Bioderived Chemicals and Their Conventional Counterparts

机译：生物衍生化学品的生命周期化石能源消耗和温室气体排放及其常规对口

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摘要

Biomass-derived chemical products may offer reduced environmental impacts compared to their fossil-derived counterparts and could improve profit margins at biorefineries when coproduced with higher-volume, lower-profit margin biofuels. It is important to assess on a life-cycle basis the energy and environmental impacts of these bioproducts as compared to conventional, fossil-derived products. We undertook a life-cycle analysis of eight bioproducts produced from either algal-derived glycerol or corn stover-derived sugars. Selected on the basis of technology readiness and market potential, the bioproducts are propylene glycol, 1,3-propanediol, 3-hydroxypropionic acid, acrylic acid, polyethylene, succinic acid, isobutanol, and 1,4-butanediol. We developed process simulations to obtain energy and material flows in the production of each bioproduct and examined sensitivity of these flows to process design assumptions. Conversion process data for fossil-derived products were based on the literature. Conversion process data were combined with upstream parameters in the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model to generate life-cycle greenhouse gas (GHG) emissions and fossil energy consumption (FEC) for each bioproduct and its corresponding petroleum-derived product. The bioproducts uniformly offer GHG emissions reductions compared to their fossil counterparts ranging from 39 to 86% on a cradle-to-grave basis. Similarly, FEC was lower for bioproducts than for conventional products.
机译：与源自化石的同类产品相比，源自生物质的化学产品可能减少对环境的影响，并且与更高产量，较低利润率的生物燃料共同生产时，可以提高生物精炼厂的利润率。与传统的化石衍生产品相比，在生命周期中评估这些生物产品对能源和环境的影响非常重要。我们对从藻类甘油或玉米秸秆衍生糖生产的八种生物产品进行了生命周期分析。根据技术成熟度和市场潜力进行选择的生物产品为丙二醇，1,3-丙二醇，3-羟基丙酸，丙烯酸，聚乙烯，琥珀酸，异丁醇和1,4-丁二醇。我们开发了过程仿真，以获取每种生物产品生产中的能量和物质流，并研究了这些流对过程设计假设的敏感性。化石衍生产品的转化过程数据基于文献。转换过程数据与温室气体，受控排放和运输中的能源使用（GREET）模型中的上游参数相结合，以生成每种生物产品及其相应石油的生命周期温室气体（GHG）排放量和化石能源消耗（FEC）衍生产品。与从化石到同行的生物产品相比，从摇篮到坟墓，生物产品可统一减少温室气体排放，范围从39％到86％。同样，生物产品的FEC低于传统产品。

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  • 来源
    《Environmental Science & Technology》 |2014年第24期|14624-14631|共8页
  • 作者

    Felix Adom; Jennifer B. Dunn; Jeongwoo Han; Norm Sather;

  • 作者单位

    Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States;

    Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States;

    Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States;

    Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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