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Influence de l'humidité sur les performances de collecte de particules submicrométriques d’un filtre à manche

Abstract : Filtration performance of pulse-jet bag filters implemented in flue gas treatment of waste incineration plant was studied at laboratory scale in order to evaluate the influence of humidity during clogging/unclogging cycles. Several cycles of clogging/unclogging with on-line cleaning were done with submicronic particles with a nanosized fraction at the operating conditions as similar as possible to those found in flue gas treatment of waste incineration plants (150°C-3% RH) and in dry conditions (150°C-0% RH). The experimental results revealed a significant influence of humidity on the filtration performance mainly due to capillary condensation, namely faster increase of bag filter pressure drop, lower efficiency of particulate cake dislogment and better collection efficiency of particles between 110 and 300 nm.
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Rachid Boudhan, Aurélie Joubert, Kamal Gueraoui, Laurence Le Coq. Influence de l'humidité sur les performances de collecte de particules submicrométriques d’un filtre à manche. Congrès Français sur les Aérosols, Jan 2018, Paris, France. ⟨10.25576/ASFERA-CFA2018-12578⟩. ⟨hal-01937336⟩

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