Communication Dans Un Congrès Année : 2016

Influence of operating parameters on photocatalytic oxidation treatment efficiency: contact time investigation

Résumé

The photocatalytic oxidation (PCO) of toluene was performed in a dynamic loop reactor with control of key process parameters: UV-light intensity and air flow rate. The initial concentration of toluene was fixed at 800 ppb. The relative humidity was set at 50% (i.e. 13 000 ppm) to be close to real indoor air conditions. Two photocatalytic media geometries were used in a way to optimize the contact time. Flat and pleated geometry were studied. CFD simulations were performed with ANSYS-CFX® computational fluid software. Influence of the contact time was assessed and related to the geometry of the material. The local contact time was evaluated to be 9 times higher regarding the pleated geometry. This latter impacts the global PCO efficiency; it plays a role in the contact time between the effluent and the photocatalytic material.

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hal-02368485 , version 1 (18-11-2019)

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  • HAL Id : hal-02368485 , version 1

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Valérie Hequet, Louis Olivier, Vanessa Maroga Mboula, Cécile Raillard, Albert Subrenat, et al.. Influence of operating parameters on photocatalytic oxidation treatment efficiency: contact time investigation. The 14th International Conference on Indoor Air Quality and Climate (Indoorair 2016), Jul 2016, Gand, Belgium. ⟨hal-02368485⟩
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