Documents disponibles écrits par cet auteur

Characterization and catalytic performance of deactivated and regenerated TS - 1 extrudates in a pilot plant of propene epoxidation / Yi Zuo in Industrial & engineering chemistry research, Vol. 51 N° 32 (Août 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 32 (Août 2012) . - pp. 10586-10594 Titre : Characterization and catalytic performance of deactivated and regenerated TS - 1 extrudates in a pilot plant of propene epoxidation Type de document : texte imprimé Auteurs : Yi Zuo, Auteur ; Mengli Wang, Auteur ; Wancang Song, Auteur Année de publication : 2012 Article en page(s) : pp. 10586-10594 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Epoxidation  Pilot  plant  Catalytic  reaction Résumé : TS-1 extrudates that were used for propene epoxidation in a pilot plant for about 1700 h deactivated partly. To study the reason for the deactivation, the deactivated and regenerated catalysts were investigated with X-ray diffraction analysis, Fourier-transform infrared, Ultraviolet—visible diffuse reflectance, thermogravimetry―differential thermogravimetry, N2 sorption, n-hexane adsorption, cyclohexane adsorption, and elemental analysis. The catalytic performance of the deactivated and regenerated TS-1 extrudates in the epoxidation of propene was evaluated in a fixed-bed reactor and in a batch reactor. The activity of the deactivated catalyst from the inlet of the pilot-plant reactor was higher than that from the outlet of the reactor in which more propene oxide oligomers were generated than in the pores of catalyst taken from the inlet of the reactor. External and in situ regeneration could reinstate the activity of the deactivated catalysts, while the in situ regeneration was preferred. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26259762 [article] Characterization and catalytic performance of deactivated and regenerated TS - 1 extrudates in a pilot plant of propene epoxidation [texte imprimé] / Yi Zuo, Auteur ; Mengli Wang, Auteur ; Wancang Song, Auteur . - 2012 . - pp. 10586-10594. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 32 (Août 2012) . - pp. 10586-10594 Mots-clés : Epoxidation  Pilot  plant  Catalytic  reaction Résumé : TS-1 extrudates that were used for propene epoxidation in a pilot plant for about 1700 h deactivated partly. To study the reason for the deactivation, the deactivated and regenerated catalysts were investigated with X-ray diffraction analysis, Fourier-transform infrared, Ultraviolet—visible diffuse reflectance, thermogravimetry―differential thermogravimetry, N2 sorption, n-hexane adsorption, cyclohexane adsorption, and elemental analysis. The catalytic performance of the deactivated and regenerated TS-1 extrudates in the epoxidation of propene was evaluated in a fixed-bed reactor and in a batch reactor. The activity of the deactivated catalyst from the inlet of the pilot-plant reactor was higher than that from the outlet of the reactor in which more propene oxide oligomers were generated than in the pores of catalyst taken from the inlet of the reactor. External and in situ regeneration could reinstate the activity of the deactivated catalysts, while the in situ regeneration was preferred. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26259762

Synthesis of titanium silicalite-1 with small crystal size by using mother liquid of titanium silicalite-1 As seed / Yi Zuo in Industrial & engineering chemistry research, Vol. 50 N° 14 (Juillet 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 14 (Juillet 2011) . - pp. 8485-8491 Titre : Synthesis of titanium silicalite-1 with small crystal size by using mother liquid of titanium silicalite-1 As seed Type de document : texte imprimé Auteurs : Yi Zuo, Auteur ; Xiangsheng Wang, Auteur ; Xinwen Guo, Auteur Année de publication : 2011 Article en page(s) : pp. 8485-8491 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Titanium  Silicalite Résumé : Titanium silicalite-1 (TS-1) with small crystal size was synthesized in a TPABr-ethylamine system using the mother liquid of nanosized TS-1 as seed. The as-synthesized small-crystal TS-1, the size of which was about 600 nm × 400 nm x 250 nm was characterized with X-ray diffraction (XRD), Fourier transform-infrared (FT-IR), ultraviolet-visible (UV―vis), UV-Raman, N2 sorption, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Its catalytic performance was evaluated in the epoxidation of propylene and the hydroxylation of phenol. The conversion of hydrogen peroxide and selectivity of propylene oxide (PO) in the propylene epoxidation reached 92 and 98 mol %, respectively. In the hydroxylation of phenol, small-crystal TS-1 also resulted in a high conversion of phenol. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24346888 [article] Synthesis of titanium silicalite-1 with small crystal size by using mother liquid of titanium silicalite-1 As seed [texte imprimé] / Yi Zuo, Auteur ; Xiangsheng Wang, Auteur ; Xinwen Guo, Auteur . - 2011 . - pp. 8485-8491. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 14 (Juillet 2011) . - pp. 8485-8491 Mots-clés : Titanium  Silicalite Résumé : Titanium silicalite-1 (TS-1) with small crystal size was synthesized in a TPABr-ethylamine system using the mother liquid of nanosized TS-1 as seed. The as-synthesized small-crystal TS-1, the size of which was about 600 nm × 400 nm x 250 nm was characterized with X-ray diffraction (XRD), Fourier transform-infrared (FT-IR), ultraviolet-visible (UV―vis), UV-Raman, N2 sorption, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Its catalytic performance was evaluated in the epoxidation of propylene and the hydroxylation of phenol. The conversion of hydrogen peroxide and selectivity of propylene oxide (PO) in the propylene epoxidation reached 92 and 98 mol %, respectively. In the hydroxylation of phenol, small-crystal TS-1 also resulted in a high conversion of phenol. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24346888