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- Title
Development of gas-phase SMB technology for light olefin/paraffin separations.
- Authors
Martins, Vanessa F. D.; Ribeiro, Ana M.; Santos, João C.; Loureiro, José M.; Gleichmann, Kristin; Ferreira, Alexandre; Rodrigues, Alírio E.
- Abstract
The separation of ethylene from ethane is particularly complex due to their similar physical properties. Cryogenic distillation is the most common technology employed for this separation and is one of the most expensive operations in industry, being the driving force for the ongoing research to find a more cost-effective alternative. In the present work, a gas-phase simulated moving bed (SMB) bench unit was employed to produce polymer-grade ethylene from ethane/ethylene mixtures, using binderless 13X zeolite beads as adsorbent, and propane as desorbent. The achieved performance parameters demonstrated the high efficiency of the current technology, since ethylene was obtained with a purity of 99.8%, a recovery of 99.8%, and a productivity of 59.7 kgC2H4·h−1·
- Subjects
MOVING bed reactors; GAS phase reactions; ADSORPTION (Chemistry); ETHYLENE; ZEOLITES; ETHANES
- Publication
AIChE Journal, 2016, Vol 62, Issue 7, p2490
- ISSN
0001-1541
- Publication type
Article
- DOI
10.1002/aic.15238