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Catalytic degradation of high-density polyethylene in a reactive extruder / Michael D. Wallis in Industrial & engineering chemistry research, Vol. 47 n°15 (Août 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5175–5181 Titre : Catalytic degradation of high-density polyethylene in a reactive extruder Type de document : texte imprimé Auteurs : Michael D. Wallis, Auteur ; Sandeep Sarathy, Auteur ; Suresh K. Bhatia, Auteur ; P. Massarotto, Auteur Année de publication : 2008 Article en page(s) : p. 5175–5181 Note générale : Bibliogr. p. 5181 Langues : Anglais (eng) Mots-clés : High-density  polyethylene  --  degradation;  Reactive  extruder;  Silica−alumina Résumé : The catalytic degradation of high-density polyethylene was conducted in a reactive extruder at reaction temperatures of 425, 450, and 475 °C using silica−alumina as the cracking catalyst. A continuous kinetic model was proposed and compared to the carbon number distribution of the reaction products. The model prediction of the product selectivity described the experimental data well for a reaction temperature of 425 °C; however, it was too simplistic to predict the decrease in C4 and increase in C3 occurring at higher reaction temperatures. The liquid product obtained from the reactive extruder was comparable to gasoline; however, it did show a significantly higher C5 fraction. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0714450 [article] Catalytic degradation of high-density polyethylene in a reactive extruder [texte imprimé] / Michael D. Wallis, Auteur ; Sandeep Sarathy, Auteur ; Suresh K. Bhatia, Auteur ; P. Massarotto, Auteur . - 2008 . - p. 5175–5181. Bibliogr. p. 5181 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5175–5181 Mots-clés : High-density  polyethylene  --  degradation;  Reactive  extruder;  Silica−alumina Résumé : The catalytic degradation of high-density polyethylene was conducted in a reactive extruder at reaction temperatures of 425, 450, and 475 °C using silica−alumina as the cracking catalyst. A continuous kinetic model was proposed and compared to the carbon number distribution of the reaction products. The model prediction of the product selectivity described the experimental data well for a reaction temperature of 425 °C; however, it was too simplistic to predict the decrease in C4 and increase in C3 occurring at higher reaction temperatures. The liquid product obtained from the reactive extruder was comparable to gasoline; however, it did show a significantly higher C5 fraction. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0714450