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Flue gas purification with membranes based on the polymer of intrinsic microporosity PIM-TMN-Trip
Separation and Purification Technology ( IF 8.6 ) Pub Date : 2020-03-05 , DOI: 10.1016/j.seppur.2020.116814
Petr Stanovsky , Andrea Zitkova , Magda Karaszova , Michal Šyc , Johannes Carolus Jansen , Bibiana Comesaña Gándara , Neil McKeown , Pavel Izak

Flue gas purification experiments were performed with a membrane made from the ultrapermeable polymer of intrinsic microporosity (PIM) based on tetramethyltetrahydronaphthalene unit coupled with bicyclic triptycene (PIM-TMN-Trip). Permeation experiments with a CO2-N2-O2-SO2 mixture, simulating flue gas from power plants, were performed by means of an in-house developed permeation unit. The results showed very high permeability of the membrane for sulfur dioxide SO2 and high permeability of CO2, lying mainly between the Robeson upper bound form 2008 and the recently reported upper bound from 2019. Moderately high mixed gas selectivity of SO2 and CO2 with respect to N2 (21-29 and 11-18, respectively), in combination with very high permeability (28∙103 and 30∙103 Barrer, respetively), suggest potential use for industrial gas separation processes. The SO2/CO2 mixed gas selectivity was relatively low (around 1.8), but comparable with other novel membranes, and both are removed simultaneously in the process of CO2 separation.



中文翻译:

基于固有微孔聚合物PIM-TMN-Trip的膜的烟道气净化

烟气净化实验是使用由固有微孔性(PIM)的超渗透性聚合物制成的膜完成的,该膜基于四甲基四氢萘单元和双环三茂铁(PIM-TMN-Trip)。利用内部开发的渗透装置,用模拟出电厂的烟气的CO 2 -N 2 -O 2 -SO 2混合物进行渗透实验。结果表明,该膜对二氧化硫SO 2的渗透率非常高,而对CO 2的渗透率则高,主要介于Robeson上限形式和最近报道的2019年上限之间。SO 2和CO的混合气选择性中等2相对于至N 2具有非常高的磁导率(28∙10(分别为21-29和11-18,),在组合3和30∙10 3巴雷,respetively),建议用于工业气体分离过程的潜在用途。SO 2 / CO 2混合气体的选择性相对较低(约1.8),但与其他新型膜相当,并且在CO 2分离过程中同时被除去。

更新日期:2020-03-05
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