甲烷与氮气吸附分离研究进展

介绍了CH₄/N₂的分离原理和方法，对比分析了深冷分离法、水合物分离法、膜分离法、溶剂吸收法和吸附分离法等的优劣势，吸附分离法相比其他分离方法具有能耗低、运行成本低和稳定性高等优点，但吸附分离材料性能仍存在提升空间。重点总结了金属有机骨架(MOFs)、分子筛与炭基吸附材料3类典型CH₄/N₂吸附分离材料的国内外研究进展，深入探讨了当前吸附分离材料面临的挑战及未来发展趋势，指出了金属有机骨架材料兼具分子筛和活性炭的优势，发展前景广阔。

Research Progress in Adsorption Separation of Methane and Nitrogen

The paper introduces the principles and methods for CH₄/N₂ separation, and also compares and analyzes the advantages and disadvantages of cryogenic separation, hydrate separation, membrane separation, solvent absorption and adsorption separation. Specifically, compared with other separation methods, adsorption separation performs better in such aspects as energy consumption, operation cost and stability, but the adsorption separation material still needs further improvement. Then the paper summarizes the domestic and foreign research progress of three typical CH₄/N₂ adsorption materials, including metal-organic frameworks (MOFs), zeolites and carbon-based adsorbents, and deeply explores the current challenges faced by absorption material and its future development trends, and finally points out that MOFs possess the advantages of carbon-based adsorbents and zeolites, and will become one of the most promising candidates for high-efficiency CH₄/N₂ separation in future.