Nanoporous carbon membrane for gas separation

✍ Scribed by M.B. Rao; S. Sircar

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 793 KB
• Volume: 7
• Category: Article
• ISSN: 0950-4214
• DOI: 10.1016/0950-4214(93)80030-z

✦ Synopsis

A novel method for production of nanoporous carbon membranes by carbonization of a polymer latex is described. The estimated pore size of the membrane is between 5.0 and 5.5 A (diameter). The membrane can separate H2 from mixtures with C02, CH4, C2H6 and C,H, by selective adsorption and surface diffusion of the larger components. A moderate to high selectivity of the adsorbing components can be achieved through the membrane while maintaining fairly high permeabilities for these components even at a moderate feed-gas pressure. The membrane can be used to enrich H2 from a stream containing these components.