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Feasibility studies of micromixing and mass-transfer in an ultrasonic assisted rotating packed bed reactor

•An ultrasonic assisted RPB reactor has been innovatively designed and fabricated.•Ultrasonic probes were installed as stators on the cover of the RPB reactor.•Ultrasonic can enhance the micromixing and mass-transfer in the RPB reactor.•Ultrasonic was more sensitive for L-L micromixing than G-L mass...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2018-01, Vol.331, p.510-516
Main Authors: Luo, Yong, Luo, Jiang-Zhou, Yue, Xu-Jia, Song, Yin-Jiang, Chu, Guang-Wen, Liu, Yi, Le, Yuan, Chen, Jian-Feng
Format: Article
Language:English
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Summary:•An ultrasonic assisted RPB reactor has been innovatively designed and fabricated.•Ultrasonic probes were installed as stators on the cover of the RPB reactor.•Ultrasonic can enhance the micromixing and mass-transfer in the RPB reactor.•Ultrasonic was more sensitive for L-L micromixing than G-L mass transfer. Ultrasonic is well-known to be helpful for the improvement of chemical reactions due to its acoustic cavitation. This work reports for the first time the use of ultrasonic to enhance micromixing and mass-transfer in a rotating packed bed (RPB) reactor. The ultrasonic probes were installed as stators on the cover of the RPB reactor. Comparisons of micromixing efficiency, effective interfacial area, and volumetric liquid-side mass-transfer coefficient in the RPB reactor with and without ultrasonic were investigated systematically. A discussion for the micromixing and mass-transfer improvement in the RPB reactor was given. Feasibility studies indicated that the relative segregation index decreasing, the relative effective interfacial area increasing, and the relative volumetric liquid-side mass-transfer coefficient increasing are 13.8%, 3.7%, and 5.5%, respectively.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2017.09.013