Journal of Chemistry and Chemical Research

This study focuses on enhancing the stability of Metal-Organic Frameworks (MOFs) membranes for high-flux olefin/paraffin separation. By optimizing material synthesis, functionalization, and membrane fabrication processes, significant improvements in the thermal, chemical, and mechanical stability of MOFs membranes were achieved. Experimental results showed that the optimized MOFs membranes exhibited a 30% increase in separation flux for ethylene/ethane under high-temperature (100°C) and high-pressure (5 bar) conditions, with the selectivity coefficient increasing from 2.5 to 3.2. Long-term stability tests revealed that the flux of the optimized membranes decreased by only 10% after continuous operation for 72 hours, compared to a nearly 40% decrease in unoptimized membranes. Microstructural analysis elucidated the mechanisms by which the optimization strategies improved the membrane's pore structure and framework stability. Compared totraditional separation technologies, the optimized MOFs membranes demonstrated significant advantages in terms of energy consumption and separation efficiency, providing strong support for practical industrial applications.

Metal-Organic Frameworks ( MOFs); Olefin/paraffin separation; Stability enhancement; High-flux separation; Experimental validation