Impact of spacer on membrane gas separation performance
Mixing in gas separation membranes has received much less attention than in membrane liquid separation because gas molecules have much smaller viscosity, allowing them to diffuse easily through membranes without requiring significant flow mixing. However, due to advancements in membrane fabrication...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier Ltd
2023
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/39529/1/Impact%20of%20spacer%20on%20membrane%20gas%20separation%20performance%20%28intro%29.pdf http://umpir.ump.edu.my/id/eprint/39529/2/Impact%20of%20spacer%20on%20membrane%20gas%20separation%20performance.pdf |
| _version_ | 1796996078475673600 |
|---|---|
| author | Foo, K. Lin, W. Goh, P.S. A.L., Ahmad Liang, Y. Y. |
| author_facet | Foo, K. Lin, W. Goh, P.S. A.L., Ahmad Liang, Y. Y. |
| author_sort | Foo, K. |
| collection | UMP |
| description | Mixing in gas separation membranes has received much less attention than in membrane liquid separation because gas molecules have much smaller viscosity, allowing them to diffuse easily through membranes without requiring significant flow mixing. However, due to advancements in membrane fabrication technologies aimed at improving material properties, concentration polarization (CP) might become an issue in gas separation due to enhanced membrane efficiency and permeability. Consequently, a 2D CFD analysis is conducted to evaluate the impact of spacer-induced mixing on membrane gas concentration polarization for typical CO2/CH4 gas separation. Results show that spacers generally enhance flux performance while reducing CP in the membrane channel when compared to the case without spacers. Furthermore, the effectiveness of spacer-flux-to-pressure-loss-ratio (SPFP) reaches a peak for a Reynolds number in the range of 5 <Reh< 200 because of the trade-off between flux and pressure drop. This mixing-induced flux enhancement is most effective under high CP conditions (less mixing) within the membrane channel. Similarly, flux enhancement due to spacers can be observed as membrane selectivity, pressure ratio and feed gas concentration increase due to enhanced CP. |
| first_indexed | 2024-03-06T13:11:39Z |
| format | Article |
| id | UMPir39529 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T13:11:39Z |
| publishDate | 2023 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir395292023-12-07T01:13:21Z http://umpir.ump.edu.my/id/eprint/39529/ Impact of spacer on membrane gas separation performance Foo, K. Lin, W. Goh, P.S. A.L., Ahmad Liang, Y. Y. TP Chemical technology Mixing in gas separation membranes has received much less attention than in membrane liquid separation because gas molecules have much smaller viscosity, allowing them to diffuse easily through membranes without requiring significant flow mixing. However, due to advancements in membrane fabrication technologies aimed at improving material properties, concentration polarization (CP) might become an issue in gas separation due to enhanced membrane efficiency and permeability. Consequently, a 2D CFD analysis is conducted to evaluate the impact of spacer-induced mixing on membrane gas concentration polarization for typical CO2/CH4 gas separation. Results show that spacers generally enhance flux performance while reducing CP in the membrane channel when compared to the case without spacers. Furthermore, the effectiveness of spacer-flux-to-pressure-loss-ratio (SPFP) reaches a peak for a Reynolds number in the range of 5 <Reh< 200 because of the trade-off between flux and pressure drop. This mixing-induced flux enhancement is most effective under high CP conditions (less mixing) within the membrane channel. Similarly, flux enhancement due to spacers can be observed as membrane selectivity, pressure ratio and feed gas concentration increase due to enhanced CP. Elsevier Ltd 2023 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/39529/1/Impact%20of%20spacer%20on%20membrane%20gas%20separation%20performance%20%28intro%29.pdf pdf en http://umpir.ump.edu.my/id/eprint/39529/2/Impact%20of%20spacer%20on%20membrane%20gas%20separation%20performance.pdf Foo, K. and Lin, W. and Goh, P.S. and A.L., Ahmad and Liang, Y. Y. (2023) Impact of spacer on membrane gas separation performance. Chemical Engineering Research and Design, 200. pp. 812-822. ISSN 0263-8762. (Published) https://doi.org/10.1016/j.cherd.2023.11.019 10.1016/j.cherd.2023.11.019 |
| spellingShingle | TP Chemical technology Foo, K. Lin, W. Goh, P.S. A.L., Ahmad Liang, Y. Y. Impact of spacer on membrane gas separation performance |
| title | Impact of spacer on membrane gas separation performance |
| title_full | Impact of spacer on membrane gas separation performance |
| title_fullStr | Impact of spacer on membrane gas separation performance |
| title_full_unstemmed | Impact of spacer on membrane gas separation performance |
| title_short | Impact of spacer on membrane gas separation performance |
| title_sort | impact of spacer on membrane gas separation performance |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/39529/1/Impact%20of%20spacer%20on%20membrane%20gas%20separation%20performance%20%28intro%29.pdf http://umpir.ump.edu.my/id/eprint/39529/2/Impact%20of%20spacer%20on%20membrane%20gas%20separation%20performance.pdf |
| work_keys_str_mv | AT fook impactofspaceronmembranegasseparationperformance AT linw impactofspaceronmembranegasseparationperformance AT gohps impactofspaceronmembranegasseparationperformance AT alahmad impactofspaceronmembranegasseparationperformance AT liangyy impactofspaceronmembranegasseparationperformance |