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Kinetic study of low-temperature conversion of plastic mixtures to value added products
Ding, Fei1,2,3; Xiong, Lian1,2; Luo, Cairong1,2; Zhang, Hairong1,2; Chen, Xinde1,2
2012-03-01
Source PublicationJOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume94Pages:83-90
AbstractBatch-mode pyrolysis of 200.0 g samples of polymers was studied at low temperature. The cracking reaction was carried out in a stainless-steel autoclave with reaction temperatures of 360, 380,400 and 420 degrees C, initial pressure of 6.325 kPa (absolute pressure) and reaction times of 0-240 min. Based on the experimental results, a four-lump kinetic model has been developed to describe the production distribution of the light fractions, middle distillates and heavy fraction. This model reasonably fitted the results in each reaction of operation conditions. It was also found that the pyrolysis kinetics of separated plastic, mixed plastic and mixed plastic containing additives can be described by the same kinetic model. The plastic additives have not had a great influence on the product distribution and kinetics of the mixed plastic pyrolysis. Finally, the optimum conditions of low-temperature conversion of plastic mixtures to value-added products were established. The formation of heavy fractions from HDPE was as high as 70 wt% at 380 degrees C at a reaction time of 250 min. During the thermal degradation of plastic mixtures, the heavy fractions yielded up 50 wt% for 30 min reaction time at 400 degrees C. The total activation energies for the conversion of HOPE and the plastic mixtures were estimated to be 217.66 kJ mol(-1) and 178.49 kJ mol(-1), respectively. (C) 2011 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordPlastic Mixtures Additives Low-temperature Pyrolysis Kinetics Lumping Batch Reactor
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jaap.2011.11.013
WOS Subject ExtendedChemistry ; Spectroscopy
WOS KeywordGASOLINE-RANGE HYDROCARBONS ; HIGH-DENSITY POLYETHYLENE ; SPOUTED BED REACTOR ; WASTE PLASTICS ; THERMAL-DEGRADATION ; PYROLYSIS KINETICS ; CRACKING ; POLYPROPYLENE ; POLYSTYRENE ; RECOVERY
Indexed BySCI
Language英语
WOS SubjectChemistry, Analytical ; Spectroscopy
WOS IDWOS:000303088200011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10580
Collection中国科学院广州能源研究所
集成技术研发中心
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, GuangZhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ding, Fei,Xiong, Lian,Luo, Cairong,et al. Kinetic study of low-temperature conversion of plastic mixtures to value added products[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2012,94:83-90.
APA Ding, Fei,Xiong, Lian,Luo, Cairong,Zhang, Hairong,&Chen, Xinde.(2012).Kinetic study of low-temperature conversion of plastic mixtures to value added products.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,94,83-90.
MLA Ding, Fei,et al."Kinetic study of low-temperature conversion of plastic mixtures to value added products".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 94(2012):83-90.
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