Operating Conditions for the Pyrolysis of Poly-(ethylene terephthalate) in a Conical Spouted-Bed Reactor

被引:138
作者
Artetxe, Maite [1 ]
Lopez, Gartzen [1 ]
Amutio, Maider [1 ]
Elordi, Gorka [1 ]
Olazar, Martin [1 ]
Bilbao, Javier [1 ]
机构
[1] Univ Basque Country, Dept Chem Engn, E-48080 Bilbao, Spain
关键词
THERMAL-DEGRADATION; CARBON MATERIALS; METAL-OXIDES; POLY(ETHYLENE-TEREPHTHALATE); PET; POLYETHYLENE; MIXTURES; POLYMERIZATION; HYDRODYNAMICS; POLYPROPYLENE;
D O I
10.1021/ie900557c
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Continuous pyrolysis of poly-(ethylene terephthalate) (PET) was performed in it conical spouted-bed reactor. This reactor is especially Suitable for this process, because of its excellent hydrodynamic behavior and its versatility. Ail optimization of the operating conditions has been performed to avoid particle agglomeration and defluidization, given that these are serious problems that hinder plastic waste pyrolysis. Moreover, the influence of temperature in the pyrolysis product distribution Was Studied in the range of 500-600 degrees C. PET pyrolysis led to it high yield of gas fraction, a low amount of liquids, a significant yield of solid fraction, and a solid residue that remained in the reactor coating sand particles. The main products obtained are carbon monoxide. carbon dioxide, benzoic acid, and acetaldehyde.
引用
收藏
页码:2064 / 2069
页数:6
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