Documents disponibles écrits par cet auteur

Numerical simulation of hydrodynamics and cracking reactions in the feed mixing zone of a multiregime gas – solid riser reactor / Jieqing Gan in Industrial & engineering chemistry research, Vol. 50 N° 20 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 20 (Octobre 2011) . - pp. 11511-11520 Titre : Numerical simulation of hydrodynamics and cracking reactions in the feed mixing zone of a multiregime gas – solid riser reactor Type de document : texte imprimé Auteurs : Jieqing Gan, Auteur ; Hui Zhao, Auteur ; Abdallah S. Berrouk, Auteur Année de publication : 2011 Article en page(s) : pp. 11511-11520 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Reactor  Riser  Gas  solid  Mixing  Cracking  Hydrodynamics  Numerical  simulation Résumé : A CFD simulation was performed to evaluate the performance of a novel multiregime gas-solid fluidized riser reactor that was designed to maximize the propylene yield from the catalytic cracking process. Simulation results of the industrial-scale riser reactor show the coexistence of different regimes in the reactor. Also, both the outlet product compositions and the reaction rate vectors indicate that the cracking reactions mainly take place in the feed injection section. The product quality and distribution demonstrate the superiority of this novel process technology. The results of the CFD simulations are in good agreement with the test run results of a real industrial FCC reactor. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24612373 [article] Numerical simulation of hydrodynamics and cracking reactions in the feed mixing zone of a multiregime gas – solid riser reactor [texte imprimé] / Jieqing Gan, Auteur ; Hui Zhao, Auteur ; Abdallah S. Berrouk, Auteur . - 2011 . - pp. 11511-11520. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 20 (Octobre 2011) . - pp. 11511-11520 Mots-clés : Reactor  Riser  Gas  solid  Mixing  Cracking  Hydrodynamics  Numerical  simulation Résumé : A CFD simulation was performed to evaluate the performance of a novel multiregime gas-solid fluidized riser reactor that was designed to maximize the propylene yield from the catalytic cracking process. Simulation results of the industrial-scale riser reactor show the coexistence of different regimes in the reactor. Also, both the outlet product compositions and the reaction rate vectors indicate that the cracking reactions mainly take place in the feed injection section. The product quality and distribution demonstrate the superiority of this novel process technology. The results of the CFD simulations are in good agreement with the test run results of a real industrial FCC reactor. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24612373

Prediction of H2S and CO2 solubilities in aqueous triethanolamine solutions using a simple model of kent – eisenberg type / Wael A. Fouad in Industrial & engineering chemistry research, Vol. 51 N° 18 (Mai 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 18 (Mai 2012) . - pp. 6591-6597 Titre : Prediction of H2S and CO2 solubilities in aqueous triethanolamine solutions using a simple model of kent – eisenberg type Type de document : texte imprimé Auteurs : Wael A. Fouad, Auteur ; Abdallah S. Berrouk, Auteur Année de publication : 2012 Article en page(s) : pp. 6591-6597 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Modeling  Solubility  Carbon  dioxide  Hydrogen  sulfides  Prediction Résumé : Absorption of acid gases (H2S and CO2) by aqueous solutions of alkanolamines is the most commonly used process in the gas treatment industry. Recent process investigations on the use of triethanolamine (TEA) show its potential to render the gas sweetening operation more energy efficient in particular when mixed to methyldiethanolamine (MDEA). This paper presents a simple model of Kent-Eisenberg type that computes the dissociation of the protonated triethanolamine (TEA) equilibrium constant The model can be used to correlate mixed acid gases solubility data over 2, 3.5, and 5 M of aqueous TEA solutions at 50, 75, and 100 °C. Results for the new model shows high fitting percentage errors for both acid gases; however, the model was able to predict H2S and CO2 partial pressures accurately for another set of unfitted data. Despite the highly fitted percentage errors, the model was used as an initial guess for a different Kent-Eisenberg model which resulted into a significantly lower percentage error at 50°C. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25867310 [article] Prediction of H2S and CO2 solubilities in aqueous triethanolamine solutions using a simple model of kent – eisenberg type [texte imprimé] / Wael A. Fouad, Auteur ; Abdallah S. Berrouk, Auteur . - 2012 . - pp. 6591-6597. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 18 (Mai 2012) . - pp. 6591-6597 Mots-clés : Modeling  Solubility  Carbon  dioxide  Hydrogen  sulfides  Prediction Résumé : Absorption of acid gases (H2S and CO2) by aqueous solutions of alkanolamines is the most commonly used process in the gas treatment industry. Recent process investigations on the use of triethanolamine (TEA) show its potential to render the gas sweetening operation more energy efficient in particular when mixed to methyldiethanolamine (MDEA). This paper presents a simple model of Kent-Eisenberg type that computes the dissociation of the protonated triethanolamine (TEA) equilibrium constant The model can be used to correlate mixed acid gases solubility data over 2, 3.5, and 5 M of aqueous TEA solutions at 50, 75, and 100 °C. Results for the new model shows high fitting percentage errors for both acid gases; however, the model was able to predict H2S and CO2 partial pressures accurately for another set of unfitted data. Despite the highly fitted percentage errors, the model was used as an initial guess for a different Kent-Eisenberg model which resulted into a significantly lower percentage error at 50°C. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25867310