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Khalid MT, Anjum T, Khan AL, Rehman F, Aslam M, Gilani MA, Akhtar FH, Lee M, Chang IS, Yasin M. Task-specific polymeric membranes to achieve high gas-liquid mass transfer. CHEMOSPHERE 2023; 313:137603. [PMID: 36549512 DOI: 10.1016/j.chemosphere.2022.137603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/04/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
In the current study, Polyimide (P84)-based polymeric membranes were fabricated and used as spargers in the bubble column reactor (BCR) to get a high gas-liquid mass transfer (GL-MT) rate of oxygen in water. Different polymeric membranes were fabricated by incorporating polyvinyl pyrrolidone (PVP) as a porogen and a Zeolitic Imidazolate Framework (ZIF-8) to induce high porosity and hydrophobicity in the membranes. The GL-MT efficiency of membranes was evaluated by measuring the overall volumetric mass transfer coefficient (kLa) of oxygen in air. The kLa of O2 (in air) was measured by supplying the gas through a fixed membrane surface area of 11.94 cm2 at a fixed gas flow rate of 3L/min under atmospheric pressure. The results revealed that adding porogen and ZIF-8 increased the porosity of the membranes compared to the pure polymeric membranes. In comparison, the ZIF-8 (3 wt%) based membrane showed the highest porosity (80%), hydrophobicity (95° contact angle) and kLa of oxygen in air (241.2 h-1) with 78% saturation in only 60 s. ZIF-8 based membranes showed the potential to increase the amount of dissolved oxygen in BCR by reducing the bubble size, increasing the number of bubbles, and improving the hydrophobicity. The study showed that ZIF-8 based membrane diffusers are expected to produce high GL-MT in microbial syngas fermentation. To the best of our knowledge, this is the first study on the fabrication and application of polymeric membranes for GL-MT applications. Further research should be conducted under real fermentation conditions to assess the practicality of the system to support substrate utilization, microbial growth, and product formation.
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Affiliation(s)
- Muhammad Tayyab Khalid
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Tanzila Anjum
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Asim Laeeq Khan
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan.
| | - Fahad Rehman
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Muhammad Aslam
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Mazhar Amjad Gilani
- Department of Chemistry, COMSATS University Islamabad, Lahore Campus, Pakistan
| | - Faheem Hassan Akhtar
- Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS), Lahore, Pakistan
| | - Mungyu Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - In Seop Chang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Muhammad Yasin
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan.
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Chen G, Zhang Z, Gao F, Li J, Dong J. Experimental studies of bubble cutting in a lab-scale micro-structured bubble column with different liquid viscosity. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1107-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu W, Luo Y, Li YB, Chu GW. Scale-Up of a Rotating Packed Bed Reactor with a Mesh-Pin Rotor: (II) Mass Transfer and Application. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06684] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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