| 阳离子膜电解再生沼气脱碳吸收液的研究 |
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| 引用本文： | 田立伟,张书廷.阳离子膜电解再生沼气脱碳吸收液的研究[J].天津理工大学学报,2007,23(5):29-32. |
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| 作者姓名： | 田立伟 张书廷 |
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| 作者单位： | 天津大学,环境学院,天津,300072 |
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| 摘 要： | 本研究采用不同浓度比的碳酸氢钠和碳酸钠模拟吸收富液,用阳离子交换膜组成单膜两室膜电解装置,对吸收液进入阳极室分离钠离子脱碳再生进行了研究.结果表明,膜电解操作须在2.5 V以上进行;吸收液中的碳酸根离子首先向碳酸氢根转变,而后碳酸氢根向碳酸转化进一步释放出二氧化碳;高压操作时,当吸收液pH值变为8.3左右,出口液pH值发生突变.
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| 关 键 词： | 沼气 膜电解 碳酸氢钠 碳酸钠 浓度比 阳离子交换膜 |
| 文章编号： | 1673-095X（2007）05-0029-04 |
| 收稿时间： | 2006-11-08 |
| 修稿时间： | 2006年11月8日 |
Study of recover the solution after absorbing CO2 in marsh gas with cation-selective membrane electrodialysis |
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| TIAN Li-wei,ZHANG Shu-ting.Study of recover the solution after absorbing CO2 in marsh gas with cation-selective membrane electrodialysis[J].Journal of Tianjin University of Technology,2007,23(5):29-32. |
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| Authors: | TIAN Li-wei ZHANG Shu-ting |
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| Institution: | School of Environment Science and Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | This research takes carbon out to regenerate the simulant fertile liquor,which makes up by different concentration of sodium bicarbonate and sodium carbonate,by using the cation-selective membrane electrolysis technology.Conclusions are: 1) The operation voltage should exceed 2.5 V;2) Carbonate transform into bicarbonate,and the bicarbonate turn to carbon dioxide which will flee from liquor under low pH;3) Under high voltage,when pH value close to 8.3,effluent pH drop rapidly. |
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| Keywords: | marsh gas decarburization membrane electrolysis sodium bicarbonate sodium carbonate ratio of concentration cation-selective membrane |
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