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Coal-based synthetic natural gas (SNG): A solution to China's energy security and CO_2 reduction?

机译：煤基合成天然气（SNG）：中国能源安全和减少CO_2的解决方案？

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摘要

Considering natural gas (NG) to be the most promising low-carbon option for the energy industry, large state owned companies in China have established numerous coal-based synthetic natural gas (SNG) projects. The objective of this paper is to use a system approach to evaluate coal-derived SNG in terms of life-cycle energy efficiency and CO_2 emissions. This project examined main applications of the SNG and developed a model that can be used for evaluating energy efficiency and CO_2 emissions of various fuel pathway systems. The model development started with the GREET model, and added the SNG module and an end-use equipment module. The database was constructed with Chinese data. The analyses show when the SNG are used for cooking, power generation, steam production for heating and industry, life-cycle energies are 20-108% higher than all competitive pathways, with a similar rate of increase in life-cycle CO_2 emissions. When a compressed natural gas (CNG) car uses the SNG, life-cycle CO_2 emission will increase by 150-190% compared to the baseline gasoline car and by 140-210% compared to an electric car powered by electricity from coal-fired power plants. The life-cycle CO_2 emission of SNG-powered city bus will be 220-270% higher than that of traditional diesel city bus. The gap between SNG-powered buses and new hybrid diesel buses will be even larger-life-cycle CO_2 emission of the former being around 4 times of that of the latter. It is concluded that the SNG will not accomplish the tasks of both energy conservation and CO_2 reduction.
机译：考虑到天然气（NG）是能源行业最有希望的低碳选择，中国的大型国有公司已经建立了许多以煤为基础的合成天然气（SNG）项目。本文的目的是使用系统方法从生命周期的能源效率和CO_2排放方面评估煤衍生的SNG。该项目研究了SNG的主要应用，并开发了可用于评估各种燃料通道系统的能效和CO_2排放的模型。该模型的开发从GREET模型开始，并增加了SNG模块和最终用途设备模块。该数据库是用中文数据构建的。分析表明，当将SNG用于烹饪，发电，供热和工业生产蒸汽时，生命周期能量比所有竞争途径高出20-108％，并且生命周期中CO_2排放的增加率相似。当压缩天然气（CNG）汽车使用SNG时，与基准汽油汽车相比，生命周期的CO_2排放量将增加150-190％，与由燃煤电力驱动的电动汽车相比，其生命周期的CO_2排放量将增加140-210％植物。 SNG动力的城市客车的生命周期CO_2排放将比传统的柴油城市客车高220-270％。 SNG动力客车与新型混合动力柴油客车之间的差距将更大，前者的生命周期CO_2排放量约为后者的4倍。结论是，SNG不能同时实现节能和减少CO_2的任务。

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  • 来源
    《Energy Policy》 |2013年第4期|445-453|共9页
  • 作者

    Yanjun Ding; Weijian Han; Qinhu Chai; Shuhong Yang; Wei Shen;

  • 作者单位

    State Key Laboratory for Control and Simulation of Large Power Systems and Power Stations, Department of Thermal Engineering, Tsinghua University, Beijing 100084, PR China;

    Research and Advanced Engineering, Ford Motor Company, PO Box 2053, Mail Drop RIC-2122, Dearborn. MI 48121. USA;

    State Key Laboratory for Control and Simulation of Large Power Systems and Power Stations, Department of Thermal Engineering, Tsinghua University, Beijing 100084, PR China;

    State Key Laboratory for Control and Simulation of Large Power Systems and Power Stations, Department of Thermal Engineering, Tsinghua University, Beijing 100084, PR China;

    Ford APA Research, Ford Motor Company, Unit 4901, Tower C, Beijing Yintai Center, No. 2 Jianguomenwai Street, Chaoyang District, Beijing 100022, PR China;

  • 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

    synthetic natural gas (SNC); life-cycle assessment (LCA); CO_2 emissions;

    机译：合成天然气（SNC）;生命周期评估（LCA）;CO_2排放;

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