Enhancing evaporative mass transfer and steam stripping using microwave heating

Ogunniran, Oluwatosin, Binner, Eleanor, Sklavounos, Angelique and Robinson, John P. (2017) Enhancing evaporative mass transfer and steam stripping using microwave heating. Chemical Engineering Science, 165 . pp. 147-153. ISSN 1873-4405

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The effect of microwave heating on evaporative mass transfer of hydrocarbons was investigated for a number of contaminated solid materials. The rate of oil removal could be rationalised by the velocity of steam that was created by selective heating of water within the solid. A single correlation was found to fit 45 independent experiments across 10 separate variables, and the correlation was consistent with the physics of evaporative mass transfer. It is shown for the first time that steam stripping is the dominant mechanism that governs hydrocarbon removal during microwave processing. It was further discovered that mass transfer is enhanced due to microwave heating when compared to conventional stripping processes, with this improvement in efficiency due to the ability of the microwave process to overcome the channelling effects that limit conventional mass transfer processes.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/848497
Keywords: Steam stripping; Microwave heating; Mass transfer; Channelling
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: https://doi.org/10.1016/j.ces.2017.03.003
Depositing User: Robinson, John
Date Deposited: 24 Mar 2017 14:57
Last Modified: 04 May 2020 18:36
URI: https://eprints.nottingham.ac.uk/id/eprint/41546

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