Optimization of a hydrodynamic cavitation reactor using salicylic acid dosimetry / Lekhraj P. Amin in Chemical engineering journal, Vol. 156 N° 1 (Janvier 2010)  

Public ISBD [article]  inChemical engineering journal > Vol. 156 N° 1 (Janvier 2010) . - pp. 165-169 Titre : Optimization of a hydrodynamic cavitation reactor using salicylic acid dosimetry Type de document : texte imprimé Auteurs : Lekhraj P. Amin, Auteur ; Parag R. Gogate, Auteur ; Arthur E. Burgess, Auteur Année de publication : 2010 Article en page(s) : pp. 165-169 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Hydrodynamic cavitation Salicylic acid dosimetry Hydroxyl radicals Ultrasonic Optimization Index. décimale : 660 Résumé : In the present work, optimization of a hydrodynamic cavitation reactor, for maximizing the extent of hydroxyl radical generation, has been investigated using salicylic acid as a dosimeter. The effect of different operating parameters such as inlet pressure into the reactor, shape of the orifice, and concentration of salicylic acid employed was investigated where the extent of hydroxyl radical generation was quantified in terms of concentration of the hydroxylated products 2,5- and 2,3-dihydroxybenzoic acid. With an upstream pressure of <100 psi no hydroxyl radicals were produced but excellent results were obtained with a small circular nozzle at 4000 psi and a salicylate concentration of 750 ppm. The use of a combination of ultrasound along with hydrodynamic cavitation is also reported for the first time and results in a 15% improvement in the hydroxyl radical generation when the distance between the orifice and transducer is 5–10 mm. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4XDCHT4-2&_user=6 [...] [article] Optimization of a hydrodynamic cavitation reactor using salicylic acid dosimetry [texte imprimé] / Lekhraj P. Amin, Auteur ; Parag R. Gogate, Auteur ; Arthur E. Burgess, Auteur . - 2010 . - pp. 165-169. Génie Chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 156 N° 1 (Janvier 2010) . - pp. 165-169 Mots-clés : Hydrodynamic cavitation Salicylic acid dosimetry Hydroxyl radicals Ultrasonic Optimization Index. décimale : 660 Résumé : In the present work, optimization of a hydrodynamic cavitation reactor, for maximizing the extent of hydroxyl radical generation, has been investigated using salicylic acid as a dosimeter. The effect of different operating parameters such as inlet pressure into the reactor, shape of the orifice, and concentration of salicylic acid employed was investigated where the extent of hydroxyl radical generation was quantified in terms of concentration of the hydroxylated products 2,5- and 2,3-dihydroxybenzoic acid. With an upstream pressure of <100 psi no hydroxyl radicals were produced but excellent results were obtained with a small circular nozzle at 4000 psi and a salicylate concentration of 750 ppm. The use of a combination of ultrasound along with hydrodynamic cavitation is also reported for the first time and results in a 15% improvement in the hydroxyl radical generation when the distance between the orifice and transducer is 5–10 mm. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4XDCHT4-2&_user=6 [...]

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