化工学报 ›› 2012, Vol. 63 ›› Issue (12): 4055-4061.DOI: 10.3969/j.issn.0438-1157.2012.12.045

• 能源和环境工程 • 上一篇    下一篇

应用CaSO4载氧体燃烧技术的CaO再生过程

樊腾飞1,2, 程晓磊1,2, 王波1, 田文栋1, 肖云汉1   

  1. 1. 中国科学院先进能源动力重点实验室(工程热物理研究所), 北京 100190;
    2. 中国科学院研究生院, 北京 100080
  • 收稿日期:2012-05-04 修回日期:2012-08-16 出版日期:2012-12-05 发布日期:2012-09-14
  • 通讯作者: 王波
  • 作者简介:樊腾飞(1982-),男,博士研究生。
  • 基金资助:

    国家高技术研究发展计划项目(2008AA05A302);国际科技合作项目(2010DFB70560)。

Simulation of CaO regeneration process with CaSO4 oxygen carrier

FAN Tengfei1,2, CHENG Xiaolei1,2, WANG Bo1, TIAN Wendong1, XIAO Yunhan1   

  1. 1. Research Center for Clean Energy and Power(Institute of Engineering Thermophysics), Chinese Academy of Sciences, Beijing 100190, China;
    2. Graduate School of Chinese Academy of Sciences, Beijing 100080, China
  • Received:2012-05-04 Revised:2012-08-16 Online:2012-12-05 Published:2012-09-14
  • Supported by:

    supported by the High-tech Research and Development Program of China(2008AA05A302)and the International S&T Cooperation Program of China(2010DFB70560).

关键词: CaSO4载氧体, 化学链燃烧, CaO再生

Abstract: Coke gasification,CaSO4 chemical-looping combustion and CaCO3 decomposition were integrated into a CaO regeneration reactor in the simulation performed with Aspen Plus.The effects of temperature(700-1200℃),pressure(0.1-4 MPa)on the required minimum H2O flow,coke flow,equilibrium product yields,pollution gas emissions,heat transfer between reactors and solids circulation rate were investigated.The minimum H2O flow and coke flow reduced with increasing temperature and the declining pressure.The percentages of H2S in product gases without H2O decreased with increasing temperature and declining pressure,while the percentage of SO2 had a reverse trend.The percentage of H2S+SO2 decreased first then increased with increasing temperature.H2S was the main gas pollutant at a lower temperature and was replaced by SO2 as temperature increased,which was explained by the side reactions of CaSO4.The heat and recycled solids between the reactors decreased while solids circulation rate increased with increasing temperature,but the heat and recycled solids between the reactors increased while solids circulation rate decreased with increasing pressure.

Key words: CaSO4 oxygen carrier, chemical-looping combustion, CaO regeneration

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