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Visualization of the exothermal VOC adsorption in a fixed-bed activated carbon adsorber.

Abstract : Activated carbon fixed beds are classically used to remove volatile organic compounds (VOCs) present in gaseous emissions. In such use, an increase of local temperature due to exothermal adsorption has been reported; some accidental fires in the carbon bed due to the removal of high concentrations of ketones have been published. In this work, removal of VOCs was performed in a laboratory-scale pilot unit. In order to visualize the increase in local temperature, the adsorption front was tracked with a flame ionization detector and the thermal wave was simultaneously visualized with an infrared camera. In extreme conditions, fire in the adsorber and the combustion of activated carbon was achieved during ketone adsorption. Data have been extracted from these experiments, including local temperature, front velocity and carbon bed combustion conditions.
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Submitted on : Monday, October 14, 2013 - 1:23:54 PM
Last modification on : Thursday, March 5, 2020 - 2:01:02 PM

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Pierre Le Cloirec, Pascaline Pre, Frédéric Delage, Sylvain Giraudet. Visualization of the exothermal VOC adsorption in a fixed-bed activated carbon adsorber.. Environmental Technology, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2012, 33 (1-3), pp.285-290. ⟨10.1080/09593330.2011.571713⟩. ⟨hal-00872753⟩

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