MOF membranes cut gas separation costs below distillation
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Researchers have developed scalable quasi-pure metal-organic framework membranes that achieve near-intrinsic gas separation performance. The membranes enable energy-efficient industrial separations with major cost reductions compared with distillation.
The Membrane Breakthrough
A team led by researchers at the University of California, Berkeley, fabricated quasi-pure MOF membranes with near-intrinsic selectivity and permeability. The membranes, reported in Nature on 15 July 2026, are produced via a scalable method using a polymer substrate. They achieve separation factors within 90% of the theoretical maximum for gas pairs such as CO2/N2 and C3H6/C3H8.
Energy and Cost Impact
The new membranes reduce energy consumption by up to 80% compared to conventional cryogenic distillation for olefin/paraffin separation. Estimated operating costs fall below $0.10 per kilogram of product, undercutting distillation's $0.15–0.30 range. Industrial adoption could save the petrochemical sector billions annually, according to the study's economic analysis.
Scalability and Next Steps
The fabrication process uses roll-to-roll coating, compatible with existing membrane manufacturing lines. The team demonstrated stable performance over 1,000 hours of continuous operation. Pilot-scale modules are planned for testing at a Chevron refinery in 2027.
What's Next
The researchers aim to license the technology to membrane manufacturers within the next year. It remains unclear whether the membranes can maintain performance under real-world feed gas impurities and pressure swings.
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MOF membranes cut gas separation costs below distillation
