Documents disponibles écrits par cet auteur

Low temperature paraffin phase change emulsions / Li Huang in International journal of refrigeration, Vol. 33 N° 8 (Décembre 2010) 

Public ISBD [article]  in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1583-1589 Titre : Low temperature paraffin phase change emulsions Titre original : Emulsions à la paraffine à changement de phase à basse température Type de document : texte imprimé Auteurs : Li Huang, Auteur ; Christian Doetsch, Auteur ; Clemens Pollerberg, Auteur Année de publication : 2011 Article en page(s) : pp. 1583-1589 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Ice  slurry  Secondary  refrigerant  Material  Phase  change  Paraffin  Emulsion  Cold  storage Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : A paraffin phase change emulsion is a multifunctional fluid consisting of water as the continuous phase and a paraffin as the dispersed phase. It can store or transfer large amounts of thermal energy by using the latent heat capacity of the paraffin during the solid–liquid transition as well as the sensible heat capacity of water and that of the paraffin. This paper presents three paraffin emulsions with different phase transition temperatures: CryoSolplus6, CryoSolplus10 and CryoSolplus20. CryoSolplus6 is foreseen for air-conditioning applications with a freezing peak point of 6 °C, CryoSolplus10 for cooling of buildings with a freezing peak point of 10 °C and CryoSolplus20 for increasing the thermal storage mass of building components with a freezing peak point of 20 °C. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710001143 [article] Low temperature paraffin phase change emulsions = Emulsions à la paraffine à changement de phase à basse température [texte imprimé] / Li Huang, Auteur ; Christian Doetsch, Auteur ; Clemens Pollerberg, Auteur . - 2011 . - pp. 1583-1589. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 33 N° 8 (Décembre 2010) . - pp. 1583-1589 Mots-clés : Ice  slurry  Secondary  refrigerant  Material  Phase  change  Paraffin  Emulsion  Cold  storage Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : A paraffin phase change emulsion is a multifunctional fluid consisting of water as the continuous phase and a paraffin as the dispersed phase. It can store or transfer large amounts of thermal energy by using the latent heat capacity of the paraffin during the solid–liquid transition as well as the sensible heat capacity of water and that of the paraffin. This paper presents three paraffin emulsions with different phase transition temperatures: CryoSolplus6, CryoSolplus10 and CryoSolplus20. CryoSolplus6 is foreseen for air-conditioning applications with a freezing peak point of 6 °C, CryoSolplus10 for cooling of buildings with a freezing peak point of 10 °C and CryoSolplus20 for increasing the thermal storage mass of building components with a freezing peak point of 20 °C. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710001143

Sn-Modified ZSM-5 As support for platinum catalyst in propane dehydrogenation / Yiwei Zhang in Industrial & engineering chemistry research, Vol. 50 N° 13 (Juillet 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 7896-7902 Titre : Sn-Modified ZSM-5 As support for platinum catalyst in propane dehydrogenation Type de document : texte imprimé Auteurs : Yiwei Zhang, Auteur ; Yuming Zhou, Auteur ; Li Huang, Auteur Année de publication : 2011 Article en page(s) : pp. 7896-7902 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Dehydrogenation  Catalyst Résumé : Sn modified ZSM-5 was hydrothermally synthesized and this kind of zeolite was used as the support for platinum catalyst in propane dehydrogenation. In this tin-doped material, XRD results established the presence of highly crystalline and the analysis ofSEM showed the deterioration in crystal quality. The incorporation of Sn into the framework of ZSM-5 zeolite introduced the strong interactions between Sn species and the support, thus more amounts of tin could exist in oxidized form. Moreover, on the Sn-containing PtNa/Sn-ZSM-5 catalyst, the substitution of Sn changed the interfacial character between Pt and the support, which in consequence promoted the occurrence of spillover hydrogen and facilitated the reduction of Pt species. Compared with the conventional impregnated PtNa/HZSM-5 and PtSnNa/HZSM-5 catalysts, the Sn-modified ZSM-5-based Pt catalyst exhibited higher reaction activity and stability. It showed the lowest deactivation parameter (6.2%) and exhibited a selectivity to propene higher than 98% with the corresponding propane conversion of about 39.0% after the reaction for 9 h. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332113 [article] Sn-Modified ZSM-5 As support for platinum catalyst in propane dehydrogenation [texte imprimé] / Yiwei Zhang, Auteur ; Yuming Zhou, Auteur ; Li Huang, Auteur . - 2011 . - pp. 7896-7902. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 7896-7902 Mots-clés : Dehydrogenation  Catalyst Résumé : Sn modified ZSM-5 was hydrothermally synthesized and this kind of zeolite was used as the support for platinum catalyst in propane dehydrogenation. In this tin-doped material, XRD results established the presence of highly crystalline and the analysis ofSEM showed the deterioration in crystal quality. The incorporation of Sn into the framework of ZSM-5 zeolite introduced the strong interactions between Sn species and the support, thus more amounts of tin could exist in oxidized form. Moreover, on the Sn-containing PtNa/Sn-ZSM-5 catalyst, the substitution of Sn changed the interfacial character between Pt and the support, which in consequence promoted the occurrence of spillover hydrogen and facilitated the reduction of Pt species. Compared with the conventional impregnated PtNa/HZSM-5 and PtSnNa/HZSM-5 catalysts, the Sn-modified ZSM-5-based Pt catalyst exhibited higher reaction activity and stability. It showed the lowest deactivation parameter (6.2%) and exhibited a selectivity to propene higher than 98% with the corresponding propane conversion of about 39.0% after the reaction for 9 h. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332113