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Article Dans Une Revue Récents Progrès en Génie des Procédés Année : 2011

Volatile organic compounds treatment by compact chemical scrubbing:scrubbing solution recycling by advanced oxidation O3/H2O2.

Résumé

This study focuses on Volatile Org. Compds. (VOC) treatment in a compact chem. scrubber composed of a structured packing operating at co-current and high gas superficial velocity (\textgreater 10 m.s-1). The scrubbing liq. is composed of ozone and hydrogen peroxide to generate very reactive hydroxyl radicals. Results demonstrate a high mineralization rate of the transferred VOC, even with low oxidant concns. Therefore, the scrubbing liq. can be recycled and recirculated at the top of the scrubber without efficiency drop over time. Neutral VOC removal efficiency increases with their soly. in water, from 14% for dimethyldisulfide to 86% for butanol using a mass flow rates ratio (L/G) of 2.5 and residence time of 20 ms. For trimethylamine, a basic VOC, the increased apparent soly. at pH = 8 leads to a high removal efficiency of 80%. Major byproducts were identified and quantified. An absence of stripping in the treated gas emphasizes their innocuity. [on SciFinder(R)]
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Dates et versions

hal-01069506 , version 1 (29-09-2014)

Identifiants

  • HAL Id : hal-01069506 , version 1

Citer

Pierre-Francois Biard, Annabelle Couvert, Christophe Renner, Jean-Pierre. Levasseur. Volatile organic compounds treatment by compact chemical scrubbing:scrubbing solution recycling by advanced oxidation O3/H2O2.. Récents Progrès en Génie des Procédés, 2011, 101, pp.Axx/1--Axx/6. ⟨hal-01069506⟩
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