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首页> 外文期刊>Environmental Science & Technology >Life-Cycle Greenhouse Gas Emissions of Shale Gas, Natural Gas, Coal, and Petroleum
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Life-Cycle Greenhouse Gas Emissions of Shale Gas, Natural Gas, Coal, and Petroleum

机译：页岩气，天然气，煤炭和石油的生命周期温室气体排放

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摘要

The technologies and practices that have enabled the recent boom in shale gas production have also brought attention to the environmental impacts of its use. It has been debated whether the fugitive methane emissions during natural gas production and transmission outweigh the lower carbon dioxide emissions during combustion when compared to coal and petroleum. Using the current state of knowledge of methane emissions from shale gas, conventional natural gas, coal, and petroleum, we estimated up-to-date life-cycle greenhouse gas emissions. In addition, we developed distribution functions for key parameters in each pathway to examine uncertainty and identify data gaps such as methane emissions from shale gas well completions and conventional natural gas liquid unloadings that need to be further addressed. Our base case results show that shale gas life-cycle emissions are 6% lower than conventional natural gas, 23% lower than gasoline, and 33% lower than coal. However, the range in values for shale and conventional gas overlap, so there is a statistical uncertainty whether shale gas emissions are indeed lower than conventional gas. Moreover, this life-cycle analysis, among other work in this area, provides insight on critical stages that the natural gas industry and government agencies can work together on to reduce the greenhouse gas footprint of natural gas.
机译：促成近期页岩气生产蓬勃发展的技术和实践也引起了人们对其使用的环境影响的关注。与煤炭和石油相比，天然气生产和传输过程中的短效甲烷排放量是否超过燃烧过程中较低的二氧化碳排放量，这已经引起了争论。利用对页岩气，常规天然气，煤炭和石油中甲烷排放的最新了解，我们估算了生命周期中最新的温室气体排放。此外，我们针对每个路径中的关键参数开发了分布函数，以检查不确定性并确定数据缺口，例如页岩气井完井过程中的甲烷排放量以及常规的天然气液卸量，需要进一步解决。我们的基本结果表明，页岩气生命周期的排放量比传统天然气低6％，比汽油低23％，比煤炭低33％。但是，页岩气和常规气体的值范围重叠，因此存在统计不确定性，即页岩气排放量是否确实低于常规气体。此外，此生命周期分析以及该领域的其他工作，为天然气行业和政府机构可以共同努力减少天然气温室气体足迹的关键阶段提供了见识。

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  • 来源
    《Environmental Science & Technology》 |2012年第2期|p.619-627|共9页
  • 作者

    Andrew Burnham; Jeongwoo Han; Corrie E. Clark; Michael Wang; Jennifer B. Dunn; Ignasi Palou-Rivera;

  • 作者单位

    Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Ave, Argonne, Illinois 60439, United States;

    Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Ave, Argonne, Illinois 60439, United States;

    Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Ave, Argonne, Illinois 60439, United States;

    Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Ave, Argonne, Illinois 60439, United States;

    Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Ave, Argonne, Illinois 60439, United States;

    Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Ave, 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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