The energy costs associated with ethane-ethylene separation could be significantly reduced by the development of alternatives to cryodistillation. This work examined ethylene recovery by equilibrium adsorption on two types of titanosilicate molecular sieve adsorbents, Na-ETS-10 and Zn-RPZ. A practical adsorptive separation of industrial process gas, with a measured binary bed selectivity for ethylene over ethane of approximately 5 at 25C and 1 atm, was demonstrated using Na-ETS-10 as the adsorbent. The effects of different binder systems and separation flow rates on the mass transfer properties of Na-ETS-10 were examined in order to optimize the separation. High pressure and low temperature, similar to the working conditions in ethylene production plants, were found to increase the separation factor for these materials. Thermal, steam and microwave desorption methods were compared, and microwave desorption was determined to be the most efficient option for ethylene/ethane desorption and Na-ETS-10 regeneration. / Chemical Engineering
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:AEU.10048/968 |
| Date | 06 1900 |
| Creators | Shi, Meng |
| Contributors | Steven Kuznicki (Chemical and Materials Engineering), Tony Yeung (Chemical and Materials Engineering), Jeffrey Stryker (Chemistry), Steven Kuznicki (Chemical and Materials Engineering) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
| Format | 1841207 bytes, application/pdf |
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