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当前我国燃煤火电机组降低CO2排放的途径
引用本文:毛健雄,毛健全. 当前我国燃煤火电机组降低CO2排放的途径[J]. 电力建设, 2011, 32(11): 5-10. DOI: 10.3969/j.issn.1000-7229.2011.11.002
作者姓名:毛健雄  毛健全
作者单位:1. 清华大学热能工程系2. 贵州大学资源环境学院
基金项目:衷心感谢上海外高桥第三发电有限责任公司和冯伟忠总经理为本文所提供的数据、图片和资料!
摘    要:从我国的能源结构和CO2排放及气候变化的现实出发,分析了我国燃煤火电技术的发展方向,即在不可能短期内改变我国能源和电源结构的情况下,我国火电应当怎样应对减排CO2的压力和挑战。虽然现在正在开发的碳捕获和封存技术(carbon capture and storage,CCS)有可能达到CO2接近零排放,但在CCS技术能够得到大规模推广应用之前的一个相当长的时期,目前最可行、经济、可靠的燃煤机组CO2减排的途径是坚持“上大压小”政策大力发展大容量高效率超临界/超超临界机组,通过技术创新提高现有火电厂效率,提高现有600 ℃超超临界机组的净效率,开发先进的37.5 MPa/700 ℃/720 ℃/720 ℃双再热机组,将1 000~1 500 MW超超临界机组净效率提高至53%以上。

关 键 词:CO2排放  火电厂效率  超超临界  碳捕获和封存  
收稿时间:2011-05-11

Ways for Reducing CO2 Emissions of Coal-fired Power Plants in China
MAO Jianxiong,MAO Jianquan. Ways for Reducing CO2 Emissions of Coal-fired Power Plants in China[J]. Electric Power Construction, 2011, 32(11): 5-10. DOI: 10.3969/j.issn.1000-7229.2011.11.002
Authors:MAO Jianxiong  MAO Jianquan
Affiliation:1.Department of Thermal Energy,Tsinghua University,Beijing 100084,China;2.School of Resources and Environment,Guizhou University,Guiyang 550003,China)
Abstract:In this paper,the development direction of coal-fired thermal power generation technology based on the energy structure in China is analyzed.Though carbon capture and storage(CCS) technology can nearly reach to zero emission of CO2,it is not the most economical way at present and still under research and development,requiring a rather long period for extensive use in coal-fired power plants.Therefore,there are many reasonable,economical and reliable ways for further reducing CO2 emissions in coal fired power plants,including greatly developing the supercritical/ultra-supercritical units,enhancing the thermal efficiency by technology innovation,improving the net efficiency of present ultra-supercritical(USC) units with 600 ℃ steam parameters,and developing advanced double-reheat units for reaching to higher than 53% of net efficiency in 1 000~1 500 MW USC units.
Keywords:emission of CO2  efficiency of thermal power plant  ultra-supercritical  carbon capture and storage
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