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.
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