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Cocracking Kinetics of PE/PP and PE/Hydrocarbon Mixtures (I) PE/PP Mixtures
Alternative TitleEnergy Fuels
Jing, Xiaodong1,2; Yan, Guoxun1,3; Zhao, Yuehong1; Wen, Hao1; Xu, Zhihong1
2014-08-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume28Issue:8Pages:5396-5405
AbstractCocracking behaviors of polyethylene/polypropylene and polyethylene/hydrocarbon mixtures have been investigated using a closed batch reactor/tube reactor, followed by Thermogravimetric Analysis (TGA) at certain heating rate from ambient temperature to 873 K. In part I, the cocracking of HDPE, LDPE, and PP was divided into two stages for intensive study: polyolefin cracking at closed batch/tube reactor was performed using nonisothermal/isothermal method, and further, the thermogravimetric study of polyolefin and the cracked products from polyolefin cracking was realized using nonisothermal method. Presence of synergistic effect is observed for cocracking of polyolefin mixtures, and such synergistic effect not only exists in mild cracking using closed batch reactor/tube reactor but also exists in the thermal degradation process of thermogravimetric analysis. The kinetic studies were performed according to Coats and Redfern method for first-order reaction. It is found that the pyrolysis process can be described by one first-order reaction and PE/PP mixture can decompose at a lower temperature than PE, where the activation energy of PE/PP can significantly decreased compared with that of HDPE. The results also indicate that interactions between HDPE and PP are mainly related to experimental conditions: temperature, residence time, and the degree of mixing for PE/PP. Thus, closed batch reactor with agitation equipment is useful for thermal cracking of polyolefin to produce more light oils.; Cocracking behaviors of polyethylene/polypropylene and polyethylene/hydrocarbon mixtures have been investigated using a closed batch reactor/tube reactor, followed by Thermogravimetric Analysis (TGA) at certain heating rate from ambient temperature to 873 K. In part I, the cocracking of HDPE, LDPE, and PP was divided into two stages for intensive study: polyolefin cracking at closed batch/tube reactor was performed using nonisothermal/isothermal method, and further, the thermogravimetric study of polyolefin and the cracked products from polyolefin cracking was realized using nonisothermal method. Presence of synergistic effect is observed for cocracking of polyolefin mixtures, and such synergistic effect not only exists in mild cracking using closed batch reactor/tube reactor but also exists in the thermal degradation process of thermogravimetric analysis. The kinetic studies were performed according to Coats and Redfern method for first-order reaction. It is found that the pyrolysis process can be described by one first-order reaction and PE/PP mixture can decompose at a lower temperature than PE, where the activation energy of PE/PP can significantly decreased compared with that of HDPE. The results also indicate that interactions between HDPE and PP are mainly related to experimental conditions: temperature, residence time, and the degree of mixing for PE/PP. Thus, closed batch reactor with agitation equipment is useful for thermal cracking of polyolefin to produce more light oils.
KeywordLow-density Polyethylene Fluidized-bed Reactor Thermal-degradation Polypropylene Pp Co-pyrolysis Thermogravimetric Analysis Temperature Pyrolysis Plastic Waste Blends Ldpe
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ef5008243
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLOW-DENSITY POLYETHYLENE ; FLUIDIZED-BED REACTOR ; THERMAL-DEGRADATION ; POLYPROPYLENE PP ; CO-PYROLYSIS ; THERMOGRAVIMETRIC ANALYSIS ; TEMPERATURE PYROLYSIS ; PLASTIC WASTE ; BLENDS ; LDPE
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000340808800063
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11417
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Univ Sci & Technol, Hitech Inst Petr & Chem Ind, Qingdao 266042, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Jing, Xiaodong,Yan, Guoxun,Zhao, Yuehong,et al. Cocracking Kinetics of PE/PP and PE/Hydrocarbon Mixtures (I) PE/PP Mixtures[J]. ENERGY & FUELS,2014,28(8):5396-5405.
APA Jing, Xiaodong,Yan, Guoxun,Zhao, Yuehong,Wen, Hao,&Xu, Zhihong.(2014).Cocracking Kinetics of PE/PP and PE/Hydrocarbon Mixtures (I) PE/PP Mixtures.ENERGY & FUELS,28(8),5396-5405.
MLA Jing, Xiaodong,et al."Cocracking Kinetics of PE/PP and PE/Hydrocarbon Mixtures (I) PE/PP Mixtures".ENERGY & FUELS 28.8(2014):5396-5405.
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