Coordinative adsorption of thiophene with metallic silver / adsorbent cotton prepared via aqueous In situ reduction for desulfurization / Shuo Ai in Industrial & engineering chemistry research, Vol. 51 N° 38 (Septembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12337–12343 Titre : Coordinative adsorption of thiophene with metallic silver / adsorbent cotton prepared via aqueous In situ reduction for desulfurization Type de document : texte imprimé Auteurs : Shuo Ai, Auteur ; Hong Sui, Auteur ; Hong Li, Auteur Année de publication : 2012 Article en page(s) : pp. 12337–12343 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Metallic Silver Adsorbent Desulfurization Résumé : Selective adsorption has demonstrated minimal influence on the quality of aromatics-containing fuels. Considering the exposed surface of fibers for mass transfer, metallic silver was supported on adsorbent cotton fibers via an aqueous reduction–dehydration method with virtues such as extra low silver loading (0.2 wt %), facile preparation, low energy consumption, and no toxic emissions. On the basis of adsorption tests, thermogravimetric analysis (TGA)/differential thermal analysis (DTA) and energy-dispersive X-ray spectroscopy (ESEM-EDX), it is confirmed that the active component of adsorption is Ag0 instead of Ag+. It is attributed to the distinct polarities of thiophene–octane (model oil) and AgNO3. Model oil (500 ppmw sulfur) was pressed into an adsorption column without solvent for degassing. Temperature and retention time dependencies on capacity were investigated below 60 °C and at flow rates of 0.2 and 0.3 mL/min. The adsorption is substantially coordinative reaction. Higher capacities were determined at 50 °C in 2 h with an average sulfur removal of 27.6%, and sulfur removal declined at temperatures above 60 °C. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301503h [article] Coordinative adsorption of thiophene with metallic silver / adsorbent cotton prepared via aqueous In situ reduction for desulfurization [texte imprimé] / Shuo Ai, Auteur ; Hong Sui, Auteur ; Hong Li, Auteur . - 2012 . - pp. 12337–12343. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12337–12343 Mots-clés : Metallic Silver Adsorbent Desulfurization Résumé : Selective adsorption has demonstrated minimal influence on the quality of aromatics-containing fuels. Considering the exposed surface of fibers for mass transfer, metallic silver was supported on adsorbent cotton fibers via an aqueous reduction–dehydration method with virtues such as extra low silver loading (0.2 wt %), facile preparation, low energy consumption, and no toxic emissions. On the basis of adsorption tests, thermogravimetric analysis (TGA)/differential thermal analysis (DTA) and energy-dispersive X-ray spectroscopy (ESEM-EDX), it is confirmed that the active component of adsorption is Ag0 instead of Ag+. It is attributed to the distinct polarities of thiophene–octane (model oil) and AgNO3. Model oil (500 ppmw sulfur) was pressed into an adsorption column without solvent for degassing. Temperature and retention time dependencies on capacity were investigated below 60 °C and at flow rates of 0.2 and 0.3 mL/min. The adsorption is substantially coordinative reaction. Higher capacities were determined at 50 °C in 2 h with an average sulfur removal of 27.6%, and sulfur removal declined at temperatures above 60 °C. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301503h

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