Recycling poly-(methyl methacrylate) by pyrolysis in a conical spouted bed reactor

被引：85

作者：

Lopez, Gartzen ^{[1
]}

Artetxe, Maite ^{[1
]}

Amutio, Maider ^{[1
]}

Elordi, Gorka ^{[1
]}

Aguado, Roberto ^{[1
]}

Olazar, Martin ^{[1
]}

Bilbao, Javier ^{[1
]}

机构：

[1] Univ Basque Country, Dept Chem Engn, E-48080 Bilbao, Spain

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2010年 / 49卷 / 10期

关键词：

Waste plastics; PMMA; Pyrolysis; Spouted bed reactor; POLY(METHYL METHACRYLATE); THERMAL-DEGRADATION; MONOMER RECOVERY; FLUIDIZED-BED; CATALYTIC PYROLYSIS; PMMA; POLYETHYLENE; POLYMERS; KINETICS; DEPOLYMERIZATION;

D O I：

10.1016/j.cep.2010.08.002

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The pyrolysis of poly-(methyl methacrylate) (PMMA) has been studied in a pyrolysis plant provided with a conical spouted bed reactor This reactor is an interesting technology for the pyrolysis of waste plastics due to its excellent hydrodynamic behaviour and its high heat transfer and versatility A previous kinetic study was carried out in thermobalance in which the degradation of this polymer was observed to begin at low temperatures 553 K Consequently the activation energy is low compared to other plastics The influence of temperature on pyrolysis product distribution in the conical spouted bed reactor has been studied in the 673-823 K range The products obtained at low temperatures are mainly the monomers of the polymer used for the study methyl methacrylate (MMA) and ethyl acrylate (EA) When the pyrolysis temperature is increased the yield of monomers is lower due to the higher seventy of secondary reactions and there is a significant increase in the yield of gases The maximum monomer recovery has been obtained at 673 K with the yields of MMA and EA being 86 5% and 6 2% respectively (C) 2010 Elsevier B V All rights ieserved

引用

页码：1089 / 1094

页数：6

共 29 条

[1] Chemical recycling of poly(methyl methacrylate) by pyrolysis. Potential use of the liquid fraction as a raw material for the reproduction of the polymer [J].