Venezia, Baldassarre;
Morris, David C;
Gavriilidis, Asterios;
(2022)
Taylor‐vortex membrane reactor for continuous gas–liquid reactions.
AIChE Journal
, Article e17880. 10.1002/aic.17880.
(In press).
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Abstract
A unique Taylor-vortex membrane reactor (TVMR) design for continuous gas–liquid reactions is presented in this work. The reactor consists of a cylindrical rotor inside a stationary concentric cylindrical vessel, and a flexible system of equispaced baffle rings surrounding the rotor. This restricts the annular cross section to a small gap between the baffles and the rotor, and divides the annulus into 18 mixing zones. The baffles support a 6 m long PFA tubular membrane that is woven around the rotor. At 4 mL/min inlet flow rate, the TVMR showed a plug-flow behavior and outperformed the unbaffled reactor, having 5–12 times lower axial dispersion. The continuous aerobic oxidation of benzyl alcohol was performed for 7 h using the Pd(OAc)2/pyridine catalyst in toluene at 100 °C and 1.1 MPa oxygen pressure. A stable conversion of 30% was achieved with 85% benzaldehyde selectivity, and no pervaporation of organics into the gas phase.
| Type: | Article |
|---|---|
| Title: | Taylor‐vortex membrane reactor for continuous gas–liquid reactions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/aic.17880 |
| Publisher version: | https://doi.org/10.1002/aic.17880 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Taylor–Couette reactor, membrane reactor, axial dispersion, catalytic aerobic oxidation, process intensification |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10156248 |
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