Separation of a binary gas mixture by pressure swing adsorption: Comparison of different PSA cycles
- Authors
- Shin, H.
- Issue Date
- 1995
- Publisher
- Kluwer Academic Publishers
- Keywords
- pressure swing adsorption; processes and applications-bulk separation; simulation
- Citation
- Adsorption, v.1, no.4, pp.321 - 333
- Journal Title
- Adsorption
- Volume
- 1
- Number
- 4
- Start Page
- 321
- End Page
- 333
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/28071
- DOI
- 10.1007/BF00707355
- ISSN
- 0929-5607
- Abstract
- Gas separation of a binary gas mixture by various pressure swing adsorption (PSA) cycles was studied by a numerical simulation in order to provide a guidance in selecting PSA cycles. PSA cycles considered in this study are 3, 4-step cycles for production of only one component and a cycle with pressure equalization for production of a light component. 4 and 5-step cycles for simultaneous production of both components of a binary gas mixture are also considered. Separation of a CH4/CO2 gas mixture with zeolite 5A was chosen as a case study. Performances of cycles were examined and compared in view of purity, recovery and productivity. Their relative advantages were discussed. Inclusion of a purging step to a 3-step cycle for production of only one component improves a cycle performance. Further performance improvement of a cycle for production of a light component can be achieved by employing pressure equalization. Sircar's 4-step cycle with a recycle of effluent shows the best performance in view of purity and recovery among cycles for simultaneous production of both components. © 1995 Kluwer Academic Publishers.
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