Among the materials studied for such separations, metal-organic frameworks (MOFs) and zeolites are the most extensively investigated. MOFs are crystalline micro/mesoporous materials constructed from metal ions or clusters linked by organic linkers . Zeolites, by contrast, are crystalline microporous solids composed of tetrahedral TO4 units (T = Si, Al, P, etc.) . Compared to MOFs, zeolites offer several advantages, including superior thermal stability, low cost, and better scalability. These properties have made zeolites indispensable in the petrochemical and coal chemical industries for applications such as dehydration, xylene isomers separation, and N2/O2 separation . Despite these advantages, designing adsorbents for efficient C2H4/C2H6 separation remains highly challenging due to the small size difference and similar physical properties of the two molecules (table ). In 2018, Chen and coworkers reported an ultramicroporous MOF (UTSA-280) with rigid one-dimensional (1D) channels tailored to selectively accommodate C2H4 while excluding C2H6. This design achieved exceptional separation productivity for C2H4 from C2H6 and simulated refinery dry gas . However, UTSA-280's rigid framework and narrow channels hinder molecular diffusion under high flow rates and rapid equilibrium conditions, limiting its industrial applicability. Additionally, the high cost of ligands and the lack of scalable production process further impede its practical use.