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Adsorption of thiophene on Pt/Ag-supported activated carbons prepared by ultrasonic-assisted impregnation / Xiao-lin Tang in Industrial & engineering chemistry research, Vol. 50 N° 15 (Août 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 9363-9367 Titre : Adsorption of thiophene on Pt/Ag-supported activated carbons prepared by ultrasonic-assisted impregnation Type de document : texte imprimé Auteurs : Xiao-lin Tang, Auteur ; Wei Qian, Auteur ; An Hu, Auteur Année de publication : 2011 Article en page(s) : pp. 9363-9367 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Impregnation  Activated  carbon  Adsorption Résumé : This work mainly involved the investigation of the adsorption of thiophene on Pt/Ag-supported activated carbons (ACs) prepared by ultrasonic-assisted impregnation (UI). The adsorption capacity of thiophene over the ACs studied followed the order of Pt/Ag/AC-UI > Ag/AC-UI > Ag/AC > AC > Pt/AC. Pt ions can promote the reaction between the soft acid Ag(I) and the soft base thiophene. These sorbents were characterized by X-ray diffraction (XRD), sorption of nitrogen (BET), and thermal analysis. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24395881 [article] Adsorption of thiophene on Pt/Ag-supported activated carbons prepared by ultrasonic-assisted impregnation [texte imprimé] / Xiao-lin Tang, Auteur ; Wei Qian, Auteur ; An Hu, Auteur . - 2011 . - pp. 9363-9367. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 9363-9367 Mots-clés : Impregnation  Activated  carbon  Adsorption Résumé : This work mainly involved the investigation of the adsorption of thiophene on Pt/Ag-supported activated carbons (ACs) prepared by ultrasonic-assisted impregnation (UI). The adsorption capacity of thiophene over the ACs studied followed the order of Pt/Ag/AC-UI > Ag/AC-UI > Ag/AC > AC > Pt/AC. Pt ions can promote the reaction between the soft acid Ag(I) and the soft base thiophene. These sorbents were characterized by X-ray diffraction (XRD), sorption of nitrogen (BET), and thermal analysis. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24395881

Desulfurization of model gasoline on modified bentonite / Xiao-lin Tang in Industrial & engineering chemistry research, Vol. 50 N° 12 (Juin 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 12 (Juin 2011) Titre : Desulfurization of model gasoline on modified bentonite Type de document : texte imprimé Auteurs : Xiao-lin Tang, Auteur ; Xuan Meng, Auteur ; Li Shi, Auteur Année de publication : 2011 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Modeling  Desulfurization Résumé : This work mainly involved the investigation of the adsorption of propylmercaptan (PM) on modified bentonite adsorbents. The adsorbents were prepared by loading it separately with Cu2+, Cu+, Fe3+, and MnO4―. In general, these bentonite adsorbents tested for sulfur adsorption capacity at breakthrough followed the order: KMnO4―bentonite > Cu(I)―bentonite > Cu(II)―bentonite > Fe(III)―bentonite. Several factors that influence the desulfurization capability, including loading and baking temperature, were investigated. The results of X-ray diffraction (XRD), nitrogen sorption (BET), thermal analysis (TGA), and Fourier transform infrared (FT-IR) spectroscopy showed that the ability of modified bentonite to adsorb PM depends strongly on its surface chemistry, particularly on the presence of basic oxygen-containing groups and acid content. The high sulfur capacities of KMnO4―bentonite and Fe(III)―bentonite were because of the powerful oxidization of MnO4― and Fe3+. The high sulfur capacities of Cu(I)―bentonite and Cu(II)―bentonite were due to π-complexation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24239069 [article] Desulfurization of model gasoline on modified bentonite [texte imprimé] / Xiao-lin Tang, Auteur ; Xuan Meng, Auteur ; Li Shi, Auteur . - 2011. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 12 (Juin 2011) Mots-clés : Modeling  Desulfurization Résumé : This work mainly involved the investigation of the adsorption of propylmercaptan (PM) on modified bentonite adsorbents. The adsorbents were prepared by loading it separately with Cu2+, Cu+, Fe3+, and MnO4―. In general, these bentonite adsorbents tested for sulfur adsorption capacity at breakthrough followed the order: KMnO4―bentonite > Cu(I)―bentonite > Cu(II)―bentonite > Fe(III)―bentonite. Several factors that influence the desulfurization capability, including loading and baking temperature, were investigated. The results of X-ray diffraction (XRD), nitrogen sorption (BET), thermal analysis (TGA), and Fourier transform infrared (FT-IR) spectroscopy showed that the ability of modified bentonite to adsorb PM depends strongly on its surface chemistry, particularly on the presence of basic oxygen-containing groups and acid content. The high sulfur capacities of KMnO4―bentonite and Fe(III)―bentonite were because of the powerful oxidization of MnO4― and Fe3+. The high sulfur capacities of Cu(I)―bentonite and Cu(II)―bentonite were due to π-complexation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24239069