GJHBT
IJNMR
IJGONC
IJAAPR
IJCLR| International Journal of Membrane Science and Technology (Volume 4 Issue 1) | |
| Theoritical study of various configurations of membrane processes for olefins separation |  |
| Pages 1-7 K. Ghasemzadeh, M. Jafari and A. Basile DOI: http://dx.doi.org/10.15379/2410-1869.2017.04.01.01 Published: 30 May 2017 |
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| Abstract | |
| The major purpose of present study, is investigation of the ZIF-8 membrane performance for various configurations, namely; single stage, series multistage and countercurrent recycle cascade(CRC), during separation of propylene from propane and other gases. To this aim, a balck-box model was developed using Pro II software vesion 9 and its validation was carried out by comparing the simulation results with experimental data. The results of simulation validation illustrated a good agreement between theoritical results and experimental data. After simulation validation, for propylene separation, various configurations of ZIF-8 membrane process (single stage, series multistage and countercurrent recycle cascade(CRC) multistage) were compared and the best results were achieved for CRC configuration. In this work, the influence of the some significant operating parameters, namely pressure gradient, feed molar flow rate and membrane surface area on the performance of ZIF-8 membrane was studied in term of purification efficiency of propylene. In general, the simulation results showed that the ZIF-8 membrane presents acceptable performance to produce high purity propylene. It can be concluded that the propylene composition in the permeate side was decreased by membrane surface area, while the feed flow rate and pressure gradient effects were different. However, increasing of feed flow rate indicated the enhancement of propylene molar fraction in retentate side and consequently this result showed decreasing of the membrane performance. | |
| Keywords | |
| Membrane processes, ZIF-8 membrane, simulation, propylene separation, membrane process configurations | |
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