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Characteristics of a confined impinging jet reactor / Shad W. Siddiqui in Industrial & engineering chemistry research, Vol. 48 N° 17 (Septembre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 17 (Septembre 2009) . - pp. 7945–7958 Titre : Characteristics of a confined impinging jet reactor : energy dissipation, homogeneous and heterogeneous reaction products, and effect of unequal flow Type de document : texte imprimé Auteurs : Shad W. Siddiqui, Auteur ; Yinan Zhao, Auteur ; Alena Kukukova, Auteur Année de publication : 2009 Article en page(s) : pp. 7945–7958 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Confined  impinging  jet  reactor  Energy  dissipation  rate  Micromixing  efficiency  Homogeneous  reaction  Heterogeneous  precipitation  reaction Résumé : The confined impinging jet reactor (CIJR) has attracted wide interest in the past few years because of the efficient micromixing that it offers. In this work, the CIJR is characterized over a wide range of mixing conditions, using three measures of performance: estimates of the energy dissipation rate, micromixing efficiency based on the yield of a homogeneous reaction, and particle size resulting from a heterogeneous precipitation reaction. The energy dissipation results showed very good agreement between four methods, with values up to 100 times greater than those observed in stirred tanks. The reactions showed a higher sensitivity to mixing conditions at higher concentrations, with less effect of mixing at high flow rates. The operation of the CIJR was very robust to changes in flow rate, with stable performance for up to a 30% difference in the inlet flows. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801562y [article] Characteristics of a confined impinging jet reactor : energy dissipation, homogeneous and heterogeneous reaction products, and effect of unequal flow [texte imprimé] / Shad W. Siddiqui, Auteur ; Yinan Zhao, Auteur ; Alena Kukukova, Auteur . - 2009 . - pp. 7945–7958. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 17 (Septembre 2009) . - pp. 7945–7958 Mots-clés : Confined  impinging  jet  reactor  Energy  dissipation  rate  Micromixing  efficiency  Homogeneous  reaction  Heterogeneous  precipitation  reaction Résumé : The confined impinging jet reactor (CIJR) has attracted wide interest in the past few years because of the efficient micromixing that it offers. In this work, the CIJR is characterized over a wide range of mixing conditions, using three measures of performance: estimates of the energy dissipation rate, micromixing efficiency based on the yield of a homogeneous reaction, and particle size resulting from a heterogeneous precipitation reaction. The energy dissipation results showed very good agreement between four methods, with values up to 100 times greater than those observed in stirred tanks. The reactions showed a higher sensitivity to mixing conditions at higher concentrations, with less effect of mixing at high flow rates. The operation of the CIJR was very robust to changes in flow rate, with stable performance for up to a 30% difference in the inlet flows. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801562y