南京大学郭盛团队报道了用于分离液态脂肪族化合物的富氟聚芳胺膜。相关研究成果发表在2025年1月10日出版的《科学》。

研究人员探索了膜材料在降低脂肪烃原料和产品分离的，能源和碳需求方面的潜力。开发了一系列具有分离的全氟烷基侧链的，刚性聚合物骨架的富氟聚芳胺聚合物膜。这种组合赋予聚合物抵抗碳氢化合物浸泡引起的膨胀的能力，而不会损失基于溶液的膜制造技术。

这些材料在环境温度下表现出良好的液相烷烃异构体分离。研究人员在一系列实验中研究了将这些聚合物膜，集成到燃料和化学原料分离过程中。基于这些实验的技术经济分析表明，性能最好的膜材料可以大大降低碳氢化合物分离的能源成本，和相关的碳排放（根据产品规格，可以降低2到10倍）。

附：英文原文

Title: Fluorine-rich poly(arylene amine) membranes for the separation of liquid aliphatic compounds

Author: Yi Ren, Hui Ma, Jinsu Kim, Mohammed Al Otmi, Ping Lin, Changhui Dai, Young Joo Lee, Zihan Zhai, Woo Jin Jang, Shijie Yang, Akriti Sarswat, Yacine Feliachi, Janani Sampath, Matthew J. Realff, Ryan P. Lively, Sheng Guo

Issue&Volume: 2025-01-10

Abstract: We explored the potential for membrane materials to reduce energy and carbon requirements for the separation of aliphatic hydrocarbon feedstocks and products. We developed a series of fluorine-rich poly(arylene amine) polymer membranes that feature rigid polymer backbones with segregated perfluoroalkyl side chains. This combination imbues the polymers with resistance to dilation induced by hydrocarbon immersion without the loss of solution-based membrane fabrication techniques. These materials exhibit good separation of liquid-phase alkane isomers at ambient temperatures. The integration of these polymeric membranes into fuel and chemical feedstock separation processes was investigated in a series of experiments. Technoeconomic analyses based on these experiments indicate that the best-performing membrane materials can substantially reduce the energy costs and associated carbon emissions of hydrocarbon separations (two to 10 times, depending on product specifications).

DOI: adp2619

Source: https://www.science.org/doi/10.1126/science.adp2619