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Catalytic hydrotreatment of crude waxes from different sources over a Ni-W/-Al2O3 catalyst / Jesús Sánchez in Industrial & engineering chemistry research, Vol. 47 N°18 (Septembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6854–6861 Titre : Catalytic hydrotreatment of crude waxes from different sources over a Ni-W/-Al2O3 catalyst Type de document : texte imprimé Auteurs : Jesús Sánchez, Auteur ; María Fernanda Tallafigo, Auteur ; Miguel A. Gilarranz, Auteur Année de publication : 2008 Article en page(s) : p. 6854–6861 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Crude  wax  Alumina-supported  catalyst  Spindle  feedstock Résumé : The hydrotreatment of crude wax from the dewaxing of spindle, light neutral, medium neutral, heavy neutral, and brightstock oil was studied to obtain refined paraffins that are suitable for high-grade applications. The runs were performed using an alumina-supported catalyst with 5.9 wt % of nickel (as NiO) and 16.2 wt % of tungsten (as WO3) that was used for >6000 h. The ease of treatment was ranked as follows: spindle > light neutral > medium neutral > heavy neutral ≫ brightstock. The use of high temperatures and pressures was needed to obtain a convenient reduction in the color of the heavier feedstocks. Spindle feedstock required a temperature of 548 K and a pressure of 9.81 MPa, whereas 623 K and 13.7 MPa were needed for heavy neutral feedstock to obtain refined paraffins with a Saybolt color of >+30. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800014u [article] Catalytic hydrotreatment of crude waxes from different sources over a Ni-W/-Al2O3 catalyst [texte imprimé] / Jesús Sánchez, Auteur ; María Fernanda Tallafigo, Auteur ; Miguel A. Gilarranz, Auteur . - 2008 . - p. 6854–6861. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6854–6861 Mots-clés : Crude  wax  Alumina-supported  catalyst  Spindle  feedstock Résumé : The hydrotreatment of crude wax from the dewaxing of spindle, light neutral, medium neutral, heavy neutral, and brightstock oil was studied to obtain refined paraffins that are suitable for high-grade applications. The runs were performed using an alumina-supported catalyst with 5.9 wt % of nickel (as NiO) and 16.2 wt % of tungsten (as WO3) that was used for >6000 h. The ease of treatment was ranked as follows: spindle > light neutral > medium neutral > heavy neutral ≫ brightstock. The use of high temperatures and pressures was needed to obtain a convenient reduction in the color of the heavier feedstocks. Spindle feedstock required a temperature of 548 K and a pressure of 9.81 MPa, whereas 623 K and 13.7 MPa were needed for heavy neutral feedstock to obtain refined paraffins with a Saybolt color of >+30. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800014u