| 氨基酸离子液体-MDEA混合水溶液对CO2的降膜吸收 |
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| 引用本文： | 方诚刚,张锋,马静文,王渊涛,耿皎,张志炳.氨基酸离子液体-MDEA混合水溶液对CO2的降膜吸收[J].化工学报,2011,62(3):723-729. |
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| 作者姓名： | 方诚刚 张锋 马静文 王渊涛 耿皎 张志炳 |
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| 作者单位： | 南京大学化学化工学院教育部介观化学重点实验室，分离工程研究中心;南京大学环境学院;中国药科大学药学院 |
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| 基金项目： | 江苏省自然科学基金项目,国家博士后基金项目,江苏省博士后基金项目 |
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| 摘 要： | 氨基酸离子液体对CO2吸收速度快，而N-甲基二乙醇胺（MDEA）有较高的CO2吸收负荷，因此选用四甲基铵甘氨酸（［N1111］［Gly］）与MDEA水溶液复配成混合吸收剂用于CO2的降膜吸收。用恒定容积法研究了混合吸收剂吸收CO2的性能，实验结果显示，提高CO2分压和增大［N1111］［Gly］浓度均能提高混合吸收剂对
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| 关 键 词： | N-甲基二乙醇胺 四甲基铵甘氨酸 二氧化碳 离子液体 降膜吸收 |
Performance of CO2 falling film absorption in mixed aqueous solution of MDEA and amino acid ionic liquid |
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| FANG Chenggang,ZHANG Feng,MA Jingwen,WANG Yuantao,GENG Jiao,ZHANG Zhibing.Performance of CO2 falling film absorption in mixed aqueous solution of MDEA and amino acid ionic liquid[J].Journal of Chemical Industry and Engineering(China),2011,62(3):723-729. |
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| Authors: | FANG Chenggang ZHANG Feng MA Jingwen WANG Yuantao GENG Jiao ZHANG Zhibing |
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| Abstract: | Amino acid ionic liquid adsorbs CO2 rapidly and N-methyldiethanolamine (MDEA)has high CO2 absorption load.Therefore, tetramethylammonium glycinate (［N1111］［Gly］)was synthesized and mixed with N-methyldiethanolamine (MDEA)aqueous solutions to form complex absorbents.The CO2 absorption capabilities of the complex absorbents were measured with the constant volume method.The results indicated that the absorption capacity per volume increased with CO2 pressure and concentration of ［N1111］［Gly］, while the mole absorptivity at absorption equilibrium was independent of ［N1111］［Gly］ concentration under different CO2 pressures.The absorption of CO2 was also performed in a countercurrent falling film column, showing that the concentration of ［N1111］［Gly］
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