Documents disponibles écrits par cet auteur

Control of product distribution of fischer – tropsch synthesis with a novel rotating packed - bed reactor / Jian-feng Chen in Industrial & engineering chemistry research, Vol. 51 N° 25 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 25 (Juin 2012) . - pp. 8700-8703 Titre : Control of product distribution of fischer – tropsch synthesis with a novel rotating packed - bed reactor : From diesel to light olefin Type de document : texte imprimé Auteurs : Jian-feng Chen, Auteur ; Yi Liu, Auteur ; Zhang, Yi, Auteur Année de publication : 2012 Article en page(s) : pp. 8700-8703 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Fixed  bed  reactor  Fischer  Tropsch  synthesis Résumé : A rotating packed-bed (RPB) reactor has been first applied to the Fischer―Tropsch synthesis (FTS) reaction. The main products of the FTS can be selectively formed by choosing the optimum high gravity level of the RPB reactor, which has opened a door to tailor the product distribution of FTS. The high selectivity of light olefins in RPB reactor provides a novel pathway to directly and effectively form light olefins from syngas, syngas to olefin (STO), which would avoid low-efficiency methanol synthesis and methanol-to-olefin (MTO) process. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26066798 [article] Control of product distribution of fischer – tropsch synthesis with a novel rotating packed - bed reactor : From diesel to light olefin [texte imprimé] / Jian-feng Chen, Auteur ; Yi Liu, Auteur ; Zhang, Yi, Auteur . - 2012 . - pp. 8700-8703. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 25 (Juin 2012) . - pp. 8700-8703 Mots-clés : Fixed  bed  reactor  Fischer  Tropsch  synthesis Résumé : A rotating packed-bed (RPB) reactor has been first applied to the Fischer―Tropsch synthesis (FTS) reaction. The main products of the FTS can be selectively formed by choosing the optimum high gravity level of the RPB reactor, which has opened a door to tailor the product distribution of FTS. The high selectivity of light olefins in RPB reactor provides a novel pathway to directly and effectively form light olefins from syngas, syngas to olefin (STO), which would avoid low-efficiency methanol synthesis and methanol-to-olefin (MTO) process. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26066798

Preparation of Polyaniline/Multiwalled Carbon Nanotubes Nanocomposites by High Gravity Chemical Oxidative Polymerization / Yi-bo Zhao in Industrial & engineering chemistry research, Vol. 51 N° 9 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 9 (Mars 2012) . - pp. 3801-3810 Titre : Preparation of Polyaniline/Multiwalled Carbon Nanotubes Nanocomposites by High Gravity Chemical Oxidative Polymerization Type de document : texte imprimé Auteurs : Yi-bo Zhao, Auteur ; Wei, Wu, Auteur ; Jian-feng Chen, Auteur Année de publication : 2012 Article en page(s) : pp. 3801-3810 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Computational  fluid  dynamics  Fiber  optic  sensors  FluidizationSpouted  bed  Hydrodynamics Résumé : In this work the disturbances in the hydrodynamic behavior caused by the use of an optical fiber probe in a conical-cylindrical spouted bed have been analyzed based on experimental results and CFD simulations using an Eulerian-Eulerian multiphase model. The insertion of the probe inside the spouted bed caused a decrease in the fountain height and in the particle velocity for the spout region. The CFD simulations using the Representative Unit Cell model (RUC) drag model and considering the presence of the probe predicted better the experimental data of the particle velocity distribution than the other simulations performed in this work with other drag models. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25595810 [article] Preparation of Polyaniline/Multiwalled Carbon Nanotubes Nanocomposites by High Gravity Chemical Oxidative Polymerization [texte imprimé] / Yi-bo Zhao, Auteur ; Wei, Wu, Auteur ; Jian-feng Chen, Auteur . - 2012 . - pp. 3801-3810. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 9 (Mars 2012) . - pp. 3801-3810 Mots-clés : Computational  fluid  dynamics  Fiber  optic  sensors  FluidizationSpouted  bed  Hydrodynamics Résumé : In this work the disturbances in the hydrodynamic behavior caused by the use of an optical fiber probe in a conical-cylindrical spouted bed have been analyzed based on experimental results and CFD simulations using an Eulerian-Eulerian multiphase model. The insertion of the probe inside the spouted bed caused a decrease in the fountain height and in the particle velocity for the spout region. The CFD simulations using the Representative Unit Cell model (RUC) drag model and considering the presence of the probe predicted better the experimental data of the particle velocity distribution than the other simulations performed in this work with other drag models. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25595810

Preparation of polyaniline nanofibers by high gravity chemical oxidative polymerization / Xin-wei Lu in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5589-5595 Titre : Preparation of polyaniline nanofibers by high gravity chemical oxidative polymerization Type de document : texte imprimé Auteurs : Xin-wei Lu, Auteur ; Wei Wu, Auteur ; Jian-feng Chen, Auteur Année de publication : 2011 Article en page(s) : pp. 5589-5595 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Polymerization  Oxidation  Preparation Résumé : To develop a suitable method for the mass production of polyaniline (PANI) nanofibers, the preparation of PANI nanofibers was carried out by high gravity chemical oxidative polymerization (HGCOP) in a rotating packed bed (RPB) for the first time. The influences of operating conditions, e.g., aniline concentration, high-gravity level, reaction temperature, and dopants, on the morphology of PANI nanofibers were investigated in detail. FTIR, UV―vis, XRD, molecular weight, and conductivity analyses were performed to characterize the products. Advantages of this new method are discussed. PANI nanofibers were successfully obtained in a wide range of aniline concentration (0.1―0.5 M) and reaction temperature (0―60 °C). The nanofibers kept small diameters of 30―50 nm and uniform morphology even when synthesized with a high initial aniline concentration of 0.5 M. This method provides a significant improvement to the rapid mixing route to prepare PANI nanofibers in large scale, moreover, it has potential applications in the synthesis of other conductive polymers. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128682 [article] Preparation of polyaniline nanofibers by high gravity chemical oxidative polymerization [texte imprimé] / Xin-wei Lu, Auteur ; Wei Wu, Auteur ; Jian-feng Chen, Auteur . - 2011 . - pp. 5589-5595. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5589-5595 Mots-clés : Polymerization  Oxidation  Preparation Résumé : To develop a suitable method for the mass production of polyaniline (PANI) nanofibers, the preparation of PANI nanofibers was carried out by high gravity chemical oxidative polymerization (HGCOP) in a rotating packed bed (RPB) for the first time. The influences of operating conditions, e.g., aniline concentration, high-gravity level, reaction temperature, and dopants, on the morphology of PANI nanofibers were investigated in detail. FTIR, UV―vis, XRD, molecular weight, and conductivity analyses were performed to characterize the products. Advantages of this new method are discussed. PANI nanofibers were successfully obtained in a wide range of aniline concentration (0.1―0.5 M) and reaction temperature (0―60 °C). The nanofibers kept small diameters of 30―50 nm and uniform morphology even when synthesized with a high initial aniline concentration of 0.5 M. This method provides a significant improvement to the rapid mixing route to prepare PANI nanofibers in large scale, moreover, it has potential applications in the synthesis of other conductive polymers. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128682