Melamine-Copolymerization Strategy Engineered Fluorinated Polyimides for Membrane-Based Sour Natural Gas Separation.

IF 14.3 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Science Pub Date : 2025-01-29 DOI:10.1002/advs.202416109

Yi Ren, Patrick T Wright, Zhongyun Liu, Shijie Yang, Lu Lu, John Yang, Xuezhen Wang, Sheng Guo

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引用次数: 0

Abstract

Membrane-based gas separation provides an energy-efficient approach for the simultaneous CO₂ and H₂S removal from sour natural gas. The fluorinated polyimide (PI) membranes exhibited a promising balance between permeability and permselectivity for sour natural gas separation. To further improve the separation efficiency of fluorinated PI membranes, a melamine-copolymerization synthetic approach is devised that aims to incorporate melamine motifs with high sour gas affinity into the structure of the PI membranes. The fluorinated copolyimide membranes that are structurally engineered exhibited excellent solution-processability and enhanced sweet-mixed gas selectivity compared to their original PI membranes. Additionally, under a five-component sour mixed-gas feed, these melamine-copolymerized fluorinated PI membranes provided superior combined H₂S and CO₂ removal efficiency in comparison to conventional glassy polymer membranes. The melamine-copolymerization strategy provides an easily operable and generally effective approach to developing performance-enhancing PI membranes for sour natural gas separation.

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来源期刊

Advanced Science CHEMISTRY, MULTIDISCIPLINARYNANOSCIENCE &-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

18.90

自引率

2.60%

发文量

1602

审稿时长

1.9 months

期刊介绍： Advanced Science is a prestigious open access journal that focuses on interdisciplinary research in materials science, physics, chemistry, medical and life sciences, and engineering. The journal aims to promote cutting-edge research by employing a rigorous and impartial review process. It is committed to presenting research articles with the highest quality production standards, ensuring maximum accessibility of top scientific findings. With its vibrant and innovative publication platform, Advanced Science seeks to revolutionize the dissemination and organization of scientific knowledge.