[article]
| 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 |
in Industrial & engineering chemistry research > Vol. 50 N° 12 (Juin 2011)
[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 |
|
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