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

• 成果类型: Article
• 署名作者: Ren, Yi; Ma, Hui; Kim, Jinsu; Al Otmi, Mohammed; Lin, Ping; Dai, Changhui; Lee, Young Joo; Zhai, Zihan; Jang, Woo Jin; Yang, Shijie; Sarswat, Akriti; Feliachi, Yacine; Sampath, Janani; Realff, Matthew J.; Lively, Ryan P.; Guo, Sheng
• 署名单位: University System of Georgia; Georgia Institute of Technology; Nanjing University; Chonnam National University; State University System of Florida; University of Florida; State University System of Florida; University of Florida
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8711
• DOI: 10.1126/science.adp2619
• 发表日期: 2025-01-10
• 页码: 208-214
• 关键词: solvent-resistant nanofiltration; polymers

摘要

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).