New UV-photografted nanofiltration membranes for the treatment of colored textile dye effluents
New UV-photografted nanofiltration membranes for the treatment of colored textile dye effluents
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DOI：
10.1016/j.memsci.2006.10.024
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发表时间：
2006-12
影响因子：
9.5
通讯作者：
A. Akbari;Sandrine Desclaux;J. Rouch;P. Aptel;Jean-Christophe Remigy
中科院分区：
文献类型：
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作者：
A. Akbari;Sandrine Desclaux;J. Rouch;P. Aptel;Jean-Christophe Remigy
在过去的20年里，气体吸收膜（GAM）接触器已被评估为二氧化碳（CO2）捕获应用中填充柱的替代品。该技术的成功在很大程度上取决于膜和系统中使用的液体溶剂之间的润湿关系。本文以单乙醇胺（MEA）和2-氨基-2-甲基-1-丙醇（AMP）水溶液为介质，在气溶胶-凝胶（GAM）体系中对聚丙烯（PP）和聚四氟乙烯（PTFE）中空纤维微孔膜的性能进行了测试。实验结果表明，PP膜遭受损失的性能随着时间的推移，当与烷醇胺水溶液中使用，而PTFE膜保持其初始水平的性能。新的GAM模块设计允许模块串联连接、中间数据采样点和可移动膜盒。总的来说，GAM系统被证明是一种有效的技术，从模拟烟气流中吸收CO2，但溶剂-膜的关系是一个关键因素，可以显着影响系统的性能。
Over the past 20 years, gas absorption membrane (GAM) contactors have been evaluated as an alternative to packed columns in carbon dioxide (CO2) capture applications. The success of this technology is highly dependent on the wetting relationship between the membrane and liquid solvent used in the system. This paper tests the performance of microporous polypropylene (PP) and polytetrafluoroethylene (PTFE) hollow fiber membranes in a GAM system using aqueous solutions of monoethanolamine (MEA) and 2-amino-2-methyl-1-propanol (AMP). Experimental results showed that PP membranes suffer a loss in performance over time when used with aqueous alkanolamine solutions, while PTFE membranes maintain their initial level of performance. A new GAM module design allowed for the connection of modules in series, intermediate data sampling points, and removable membrane cartridges. Overall, GAM systems were shown to be an effective technology for absorbing CO2from simulated flue gas streams, but the solvent–membrane relationship is a critical factor that can significantly affect system performance.