Hydrogenation of maleic anhydride to succinic anhydride over Ni / HY - Al2O3 / Jie Li in Industrial & engineering chemistry research, Vol. 49 N° 22 (Novembre 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 22 (Novembre 2010) . - pp. 11837-11840 Titre : Hydrogenation of maleic anhydride to succinic anhydride over Ni / HY - Al2O3 Type de document : texte imprimé Auteurs : Jie Li, Auteur ; Wei-ping Tian, Auteur ; Li Shi, Auteur Année de publication : 2011 Article en page(s) : pp. 11837-11840 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Hydrogenation Résumé : The hydrogenation of maleic anhydride to succinic anhydride was carried out over Ni/Al2O3-HY catalysts. The catalysts, which contained 3-30 wt % Ni, were prepared via a kneading method. The catalysts were characterized by an array of techniques, including X-ray diffraction (XRD) and H2 temperature-programmed reduction (TPR). The nature of the Ni species on the support, and their interaction with the support, were studied. XRD and TPR studies showed that nickel was present as Ni2+ and Ni3+ species on the support, and that there was no elemental nickel (Ni0) in the unreduced samples. Pretreatment using pure H2 at different temperatures affected the reactivity. Pretreatment at 350 °C for 3 h was the best among the conditions tested. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23437887 [article] Hydrogenation of maleic anhydride to succinic anhydride over Ni / HY - Al2O3 [texte imprimé] / Jie Li, Auteur ; Wei-ping Tian, Auteur ; Li Shi, Auteur . - 2011 . - pp. 11837-11840. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 22 (Novembre 2010) . - pp. 11837-11840 Mots-clés : Hydrogenation Résumé : The hydrogenation of maleic anhydride to succinic anhydride was carried out over Ni/Al2O3-HY catalysts. The catalysts, which contained 3-30 wt % Ni, were prepared via a kneading method. The catalysts were characterized by an array of techniques, including X-ray diffraction (XRD) and H2 temperature-programmed reduction (TPR). The nature of the Ni species on the support, and their interaction with the support, were studied. XRD and TPR studies showed that nickel was present as Ni2+ and Ni3+ species on the support, and that there was no elemental nickel (Ni0) in the unreduced samples. Pretreatment using pure H2 at different temperatures affected the reactivity. Pretreatment at 350 °C for 3 h was the best among the conditions tested. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23437887

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