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Pressure drop and flooding in rotating packed beds

Lookup NU author(s): Dr James Hendry, Dr Jonathan Lee, Dr Pierrot Attidekou

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Abstract

© 2020Rotating packed beds (RPB) are an intensified alternative to conventional absorption columns. RPBs could substantially reduce costs associated with reactive-absorption processes, such as post-combustion CO2 capture. This study presents internal radial pressure profiles obtained experimentally from inside a rotating packed bed. This approach allows the individual contributions to the overall pressure drop to be investigated in greater detail than previous studies. Experiments examined the effect of rotation speed, gas flow and liquid flow on pressure drop in RPBs. The result illustrated the pressure drop can be described well using a simple 1D pressure drop contribution model. The casing pressure drop is due in part to a free vortex that forms in the RPB eye, along with entrance and exit losses. This result improves understanding of gas pressure drop, and how these factors affect the performance and design of full-scale RPBs.


Publication metadata

Author(s): Hendry JR, Lee JGM, Attidekou PS

Publication type: Article

Publication status: Published

Journal: Chemical Engineering and Processing - Process Intensification

Year: 2020

Volume: 151

Print publication date: 01/05/2020

Online publication date: 19/03/2020

Acceptance date: 16/03/2020

ISSN (print): 0255-2701

Publisher: Elsevier B.V.

URL: https://doi.org/10.1016/j.cep.2020.107908

DOI: 10.1016/j.cep.2020.107908


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