| N-甲基二乙醇胺/哌嗪溶液和氨水吸收二氧化碳的实验研究 |
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| 引用本文： | 刘今朝,王淑娟,赵博,高巨宝,齐国杰,陈昌和.N-甲基二乙醇胺/哌嗪溶液和氨水吸收二氧化碳的实验研究[J].环境科学学报,2012,32(10):2533-2539. |
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| 作者姓名： | 刘今朝 王淑娟 赵博 高巨宝 齐国杰 陈昌和 |
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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,北京,100084 |
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| 基金项目： | 国家自然科学基金项目(No.50876051) |
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| 摘 要： | MDEA/PZ溶液被认为是目前燃煤电厂煤燃烧后脱碳过程中一种很有应用前景的化学吸收剂.反应速率和气液平衡是研究CO2吸收剂的重要参数.因此,本文在一个加压湿壁塔实验台上,针对45%MDEA/5%PZ(质量分数)溶液进行实验研究,得到了溶液在20～60℃时的反应速率和在20～120℃之间低CO2负载量(<0.2mol·mol-1)条件下的CO2平衡分压,并拟合出了平衡分压的半经验关联式.鉴于氨水是目前另一种被广泛关注的CO2吸收剂,本文在相同的实验装置上,进行了5%氨水的吸收速率实验,并与MDEA/PZ的实验结果进行了对比.结果表明,两者在20℃和40℃之间的吸收速率接近,20℃时氨水的吸收速率略高,但MDEA/PZ溶液在40℃时的吸收速率高于氨水.基于研究结果,本文推荐45%MDEA/5%PZ溶液的吸收温度窗口应为40～60℃,氨水应为20～40℃.
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| 关 键 词： | 二氧化碳 氨水 N-甲基二乙醇胺/哌嗪 吸收 动力学 平衡分压 |
| 收稿时间： | 2011/12/3 0:00:00 |
| 修稿时间： | 2011/12/29 0:00:00 |
Absorption of carbon dioxide by methyldiethanolamine/piperazine and aqueous ammonia |
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| LIU Jinzhao,WANG Shujuan,ZHAO Bo,GAO Jubao,QI Guojie and CHEN Changhe.Absorption of carbon dioxide by methyldiethanolamine/piperazine and aqueous ammonia[J].Acta Scientiae Circumstantiae,2012,32(10):2533-2539. |
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| Authors: | LIU Jinzhao WANG Shujuan ZHAO Bo GAO Jubao QI Guojie and CHEN Changhe |
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| Institution: | Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084;Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084;Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084;Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084;Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084;Department of Thermal Engineering, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084 |
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| Abstract: | |
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| Keywords: | carbon dioxide aqueous ammonia methyldiethanolamine/piperazine absorption kinetics equilibrium partial pressure |
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