Ultra-selective defect-free interfacially polymerized molecular sieve thin-film composite membranes for H2 purification
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Physical Sciences and Engineering (PSE) Division
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AbstractPurification is a major bottleneck towards generating low-cost commercial hydrogen. In this work, inexpensive high-performance H2 separating membranes were fabricated by modifying the commercially successful interfacial polymerization production method for reverse osmosis membranes. Defect-free thin-film composite membranes were formed demonstrating unprecedented mixed-gas H2/CO2 selectivity of ≈ 50 at 140 °C with H2 permeance of 350 GPU, surpassing the permeance/selectivity upper bound of all known polymer membranes by a wide margin. The combination of exceptional separation performance and low manufacturing cost makes them excellent candidates for cost-effective hydrogen purification from steam cracking and similar processes.
CitationAli Z, Pacheco F, Litwiller E, Wang Y, Han Y, et al. (2017) Ultra-selective defect-free interfacially polymerized molecular sieve thin-film composite membranes for H2 purification. J Mater Chem A. Available: http://dx.doi.org/10.1039/c7ta07819f.
PublisherRoyal Society of Chemistry (RSC)
JournalJ. Mater. Chem. A