[article]
Titre : |
Pyrolysis of mixed plastics in a fluidized bed of hard burnt lime |
Type de document : |
texte imprimé |
Auteurs : |
Guido Grause, Auteur ; Shotaro Matsumoto, Auteur ; Tomohito Kameda, Auteur |
Année de publication : |
2011 |
Article en page(s) : |
pp. 5459-5466 |
Note générale : |
Chimie industrielle |
Langues : |
Anglais (eng) |
Mots-clés : |
Fluidized bed Fluidization Plastics Pyrolysis |
Résumé : |
A mixture consisting of 45 wt % polyethylene, 20 wt % polypropylene, 20 wt % polystyrene, and 15 wt % poly( ethylene terephthalate) was pyrolyzed in the presence of steam as well as nitrogen, using a fluidized bed reactor with hard burnt lime (HBL) as bed material. The experiments were carried out at 600 and 700 °C. Unlike soft burnt lime, HBL exhibited good fluidizing properties, with negligible attrition. The impact of HBL on the product distribution and the ability of HBL to support the degradation of PET under certain conditions were investigated. Compared with experiments done in the presence of quartz sand, the gas yield increased, while the wax fraction was significantly reduced. In the presence of HBL, the benzene yield rose sharply due to the decarboxylation of PET. While terephthalic acid was present in the wax fraction derived from experiments with quartz sand, it was not detected as a part of the wax fraction when HBL was used. |
DEWEY : |
660 |
ISSN : |
0888-5885 |
En ligne : |
http://cat.inist.fr/?aModele=afficheN&cpsidt=24128668 |
in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5459-5466
[article] Pyrolysis of mixed plastics in a fluidized bed of hard burnt lime [texte imprimé] / Guido Grause, Auteur ; Shotaro Matsumoto, Auteur ; Tomohito Kameda, Auteur . - 2011 . - pp. 5459-5466. Chimie industrielle Langues : Anglais ( eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5459-5466
Mots-clés : |
Fluidized bed Fluidization Plastics Pyrolysis |
Résumé : |
A mixture consisting of 45 wt % polyethylene, 20 wt % polypropylene, 20 wt % polystyrene, and 15 wt % poly( ethylene terephthalate) was pyrolyzed in the presence of steam as well as nitrogen, using a fluidized bed reactor with hard burnt lime (HBL) as bed material. The experiments were carried out at 600 and 700 °C. Unlike soft burnt lime, HBL exhibited good fluidizing properties, with negligible attrition. The impact of HBL on the product distribution and the ability of HBL to support the degradation of PET under certain conditions were investigated. Compared with experiments done in the presence of quartz sand, the gas yield increased, while the wax fraction was significantly reduced. In the presence of HBL, the benzene yield rose sharply due to the decarboxylation of PET. While terephthalic acid was present in the wax fraction derived from experiments with quartz sand, it was not detected as a part of the wax fraction when HBL was used. |
DEWEY : |
660 |
ISSN : |
0888-5885 |
En ligne : |
http://cat.inist.fr/?aModele=afficheN&cpsidt=24128668 |
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