Purification of Aggressive Supercritical Natural Gas Using Carbon Molecular Sieve Hollow Fiber Membranes
| Autor: | Chen Zhang, William J. Koros, Joseph M. Mayne, Gongping Liu, P. Jason Williams, Graham B. Wenz |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Chromatography business.industry General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Molecular sieve 01 natural sciences Industrial and Manufacturing Engineering Supercritical fluid 0104 chemical sciences Membrane chemistry Chemical engineering Natural gas Co2 removal Fiber 0210 nano-technology business Carbon |
| Zdroj: | Industrial & Engineering Chemistry Research. 56:10482-10490 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.7b03018 |
| Popis: | In this paper, we describe polyimide-derived carbon molecular sieve (CMS) hollow fiber membranes with CO2/CH4 separation factors ∼60 under a supercritical (1800 psia) natural gas feed comprising 50% CO2 and 500 ppm highly condensable C7 hydrocarbons. Long-term tests extending for 200 h proved membrane stability. Temperatures ranging from −50 to 100 °C were also tested, and the membrane showed attractive performance under the diverse conditions studied. With attractive and stable separation performance, the CMS hollow fiber membranes studied in this work can potentially enable next-generation CO2 removal processes for challenging natural gas feeds. |
| Databáze: | OpenAIRE |
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