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首页> 外文期刊>International journal of green energy >SIMULATION AND OPTIMIZATION OF EVAPORATIVE GAS TURBINE WITH CHEMICAL ABSORPTION FOR CARBON DIOXIDE CAPTURE
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SIMULATION AND OPTIMIZATION OF EVAPORATIVE GAS TURBINE WITH CHEMICAL ABSORPTION FOR CARBON DIOXIDE CAPTURE

机译：化学吸收法对蒸发燃气轮机的模拟与优化

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摘要

This article studied the integration of an evaporative gas turbine (EvGT) cycle with chemical absorption for CO_2 capture. Two systems of EvGT cycle without CO_2 capture and EvGT cycle with CO_2 capture were simulated and optimized. The impacts of key parameters such as the water/air ratio (W/A), the stripper pressure, and the flue-gas condensing temperature were studied regarding the electrical efficiency and CO_2 reduction. Simulation results show that (1) there always exists an optimum point of W/A for both EvGT and EvGT combined with CCS; (2) although lowering the stripper pressure would lower the heat quality requirement of reboiler, it increases the quantity more obviously. Therefore increasing the operating pressure of stripper would help to increase the total electrical efficiency; but the efficiency improvement becomes smaller if stripper pressure is high; (3) adding a flue-gas condenser to condense out the excessive water is another method to increase the total electrical efficiency. There is also an optimum point of condensing temperature considering the concentration of mono ethanol amine (MEA) and inlet temperature of stripper; and (4) comparatively the combined cycle has a higher gross electricity generation and electrical efficiency than the EvGT cycle no matter if combined with CO_2 capture or not.
机译：本文研究了蒸发式燃气轮机（EvGT）循环与化学吸收剂用于CO_2捕集的集成。模拟和优化了两个没有捕获CO_2的EvGT循环和两个捕获有CO_2的EvGT循环系统。研究了电效率和CO 2减少等关键参数的影响，如水/空气比（W / A），汽提塔压力和烟气冷凝温度。仿真结果表明：（1）EvGT和EvGT结合CCS总是存在W / A的最佳点； （2）降低汽提塔压力虽然会降低再沸器的热质要求，但其增加量更为明显。因此，增加汽提塔的工作压力将有助于提高总电效率。但是，如果汽提塔压力高，效率提高会变小； （3）增加烟气冷凝器以冷凝掉过多的水是提高总电效率的另一种方法。考虑到单乙醇胺（MEA）的浓度和汽提塔的入口温度，还有一个最佳的冷凝温度点。 （4）无论是否与CO_2捕集结合，联合循环的总发电量和电效率均高于EvGT循环。

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  • 来源
    《International journal of green energy》 |2009年第5期|527-539|共13页
  • 作者

    H. Li; S. Flores; Y. Hu; J. Yan;

  • 作者单位

    Chemical Engineering and Technology/Energy Processes, Royal Institute of Technology, SE-100 44 Stockholm, Sweden;

    Chemical Engineering and Technology/Energy Processes, Royal Institute of Technology, Stockholm, Sweden;

    Chemical Engineering and Technology/Energy Processes, Royal Institute of Technology, Stockholm, Sweden;

    Chemical Engineering and Technology/Energy Processes, Royal Institute of Technology, Stockholm, Sweden Sustainable Development of Society and Technology, Malardalen University, Vasteras, Sweden;

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  • 正文语种 eng
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  • 关键词

    evaporative gas turbines; humid air turbines; CO_2 capture; chemical absorption; electrical efficiency;

    机译：蒸发式燃气轮机;潮湿的空气涡轮机;二氧化碳捕获;化学吸收电效率;

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