| SO_2对碳捕集过程影响的实验研究 |
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| 引用本文： | 高巨宝,王淑娟,周姗,赵博,陈昌和,徐旭常.SO_2对碳捕集过程影响的实验研究[J].中国电机工程学报,2011(5). |
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| 作者姓名： | 高巨宝 王淑娟 周姗 赵博 陈昌和 徐旭常 |
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| 作者单位： | 清华大学热科学与动力工程教育部重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50876051,50906044)~~ |
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| 摘 要： | 采用新型混合有机胺CO2吸收剂,在捕集CO2中试实验台上进行长期稳定运行实验,研究SO2对碳捕集过程的影响。实验结果表明,SO2、胺吸收剂的氧化和热降解导致CO2脱除效率随着循环反应时间的增加而逐步降低,其中SO2是主要影响因素。在O2存在的条件下,SO2浓度越高,CO2脱除效率下降越快。随着SO2不断地被胺吸收剂吸收,一方面促进了热稳定性盐的生成,另一方面使吸收剂溶液的pH值逐步降低,最终使得CO2脱除效率越来越低。与此同时,越来越多的SO42-和SO32-占据了胺吸收剂的反应位,使其与CO2的吸收反应形成竞争关系,致使CO2负载量逐步降低,以至于影响到吸收解吸过程的稳定性。采用有效的方法适时的清除SO2导致的热稳定性盐,有利于碳捕集系统吸收解吸性能的提高。
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| 关 键 词： | CO2 SO2 胺吸收剂 碳捕集 中试装置 燃煤电厂 |
Experimental Study on the Influence of SO_2 on the CO_2 Capture Process |
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| GAO Jubao,WANG Shujuan,ZHOU Shan,ZHAO Bo,CHEN Changhe,XU Xuchang.Experimental Study on the Influence of SO_2 on the CO_2 Capture Process[J].Proceedings of the CSEE,2011(5). |
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| Authors: | GAO Jubao WANG Shujuan ZHOU Shan ZHAO Bo CHEN Changhe XU Xuchang |
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| Affiliation: | GAO Jubao,WANG Shujuan,ZHOU Shan,ZHAO Bo,CHEN Changhe,XU Xuchang(Key Laboratory for Thermal Science and Power Engineering of the Ministry of Education,Tsinghua University,Haidian District,Beijing 100084,China) |
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| Abstract: | A lab CO2 capture pilot plant was operated continuously for hundreds of hours using new blended aqueous amine solution.The effect of SO2 on the CO2 capture process was investigated experimentally in the pilot plant.The experimental results show that the CO2 removal efficiency decreases with an increase of absorbent reaction time,which is induced by amine oxidative degradation,thermal degradation and SO2.Among them,SO2 is the most important factor.At the presence of O2,the higher the concentration of SO2 is,... |
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| Keywords: | CO2 SO2 amine absorbent CO2 capture pilot plant coal-fired power plant |
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