...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Energy >Energy analyses and process integration of coal-fired power plant with CO_2 capture using sodium-based dry sorbents
【24h】

Energy analyses and process integration of coal-fired power plant with CO_2 capture using sodium-based dry sorbents

机译：使用钠基干吸附剂进行CO_2捕集的燃煤电厂的能量分析和过程集成

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Post-combustion CO2 capture using sodium-based solid sorbents is viewed as a promising technology owing to its advantages of low cost, easy accessibility, and low desorption temperature. It is necessary to evaluate the efficiency penalty of coal-fired power plants (CFPPs) using sodium-based solid sorbents prior to industrial applications. In this study, a typical 300MW CFPP, coupled with a sodium-based CO2 capture system, was established in Aspen Plus. The simulation results demonstrate that the gross efficiency penalty was 15.5% as a result of this process. The energy consumption for the CO2 capture process was 7.23 GJ/tCO(2) without any heat recovery; substantially higher than that of typical Monoethanolamine (MEA)-based CCS technologies, which is in the range of 3.8 to 4.2 GJ/tCO(2). By recovering the heat of the outlet gas and sorbents from the desorption reactor, the energy consumption was reduced to 4.04 GJ/tCO(2), with a gross efficiency penalty of 8.55%. To recover low-level heat from the sorption reactor, an economical system was proposed, consisting of a CFPP with CO2 capture and a cogeneration unit with an absorption heat pump. The energy consumption was further reduced to 1.08 GJ/tCO(2), and the net efficiency penalty of this economical system was 11.99%. This method may provide significant economic and application prospects for sodium-based CO2 capture technology.
机译：使用钠基固体吸附剂的燃烧后二氧化碳捕集由于其成本低，易于获得和解吸温度低等优点而被视为有前途的技术。在工业应用之前，有必要评估使用钠基固体吸附剂的燃煤电厂（CFPP）的效率损失。在这项研究中，在Aspen Plus中建立了典型的300MW CFPP以及基于钠的CO2捕集系统。仿真结果表明，该过程的总效率损失为15.5％。 CO2捕集过程的能耗为7.23 GJ / tCO（2），没有任何热量回收。大大高于基于单乙醇胺（MEA）的典型CCS技术（在3.8至4.2 GJ / tCO（2）范围内）。通过从解吸反应器中回收出口气体和吸附剂的热量，能量消耗降低至4.04 GJ / tCO（2），总效率损失为8.55％。为了从吸附反应器中回收少量热量，提出了一种经济的系统，该系统由具有CO2捕集功能的CFPP和带有吸收式热泵的热电联产装置组成。能耗进一步降低至1.08 GJ / tCO（2），该经济系统的净效率损失为11.99％。该方法可为钠基二氧化碳捕集技术提供重要的经济和应用前景。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号