Kinetic studies on the pyrolysis of plastic waste using a combination of model-fitting and model-free methods

doi:10.1177/0734242X19897814

GIEC OpenIR

	Kinetic studies on the pyrolysis of plastic waste using a combination of model-fitting and model-free methods
	Yao, Zhitong 1; Yu, Shaoqi 1; Su, Weiping 1; Wu, Weihong 1; Tang, Junhong 1; Qi, Wei2
	2020-01-20
发表期刊	WASTE MANAGEMENT & RESEARCH
ISSN	0734-242X
页码	9
通讯作者	Yao, Zhitong(sxyzt@126.com)
摘要	In this work, the pyrolysis behavior of plastic waste-TV plastic shell-was investigated, based on thermogravimetric analysis and using a combination of model-fitting and model-free methods. The possible reaction mechanism and kinetic compensation effects were also examined. Thermogravimetric analysis indicated that the decomposition of plastic waste in a helium atmosphere can be divided into three stages: the minor loss stage (20-300 degrees C), the major loss stage (300-500 degrees C) and the stable loss stage (500-1000 degrees C). The corresponding weight loss at three different heating rates of 15, 25 and 35 K/min were determined to be 2.80-3.02%, 94.45-95.11% and 0.04-0.16%, respectively. The activation energy (E-a) and correlation coefficient (R-2) profiles revealed that the kinetic parameters calculated using the Friedman and Kissinger-Akahira-Sunose method displayed a similar trend. The values from the Flynn-Wall-Ozawa and Starink methods were comparable, although the former gave higher R-2 values. The E-alpha values gradually decreased from 269.75 kJ/mol to 184.18 kJ/mol as the degree of conversion (alpha) increased from 0.1 to 0.8. Beyond this range, the E-alpha slightly increased to 211.31 kJ/mol. The model-fitting method of Coats-Redfern was used to predict the possible reaction mechanism, for which the first-order model resulted in higher R-2 values than and comparable E-alpha values to those obtained from the Flynn-Wall-Ozawa method. The pre-exponential factors (lnA) were calculated based on the F1 reaction model and the Flynn-Wall-Ozawa method, and fell in the range 59.34-48.05. The study of the kinetic compensation effect confirmed that a compensation effect existed between E-a and lnA during the plastic waste pyrolysis.
关键词	Plastic waste acrylonitrile-butadiene-styrene pyrolysis kinetics model-free method model-fitting method
DOI	10.1177/0734242X19897814
关键词[WOS]	THERMAL-DEGRADATION ; ACTIVATION-ENERGY ; STATE ; ABS ; MECHANISM ; BEHAVIOR ; CRYSTALLIZATION ; PARAMETERS ; COALS
收录类别	SCI
语种	英语
资助项目	Zhejiang Provincial Natural Science Foundation of China[LY19B070008] ; National Natural Science Foundation of China[51911530460] ; National Natural Science Foundation of China[51606055]
WOS研究方向	Engineering ; Environmental Sciences & Ecology
项目资助者	Zhejiang Provincial Natural Science Foundation of China ; National Natural Science Foundation of China
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000508527000001
出版者	SAGE PUBLICATIONS LTD
引用统计	被引频次：87[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/26347
专题	中国科学院广州能源研究所
通讯作者	Yao, Zhitong
作者单位	1.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Xiasha High Educ Pk, Hangzhou 310018, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Peoples R China
推荐引用方式 GB/T 7714	Yao, Zhitong,Yu, Shaoqi,Su, Weiping,et al. Kinetic studies on the pyrolysis of plastic waste using a combination of model-fitting and model-free methods[J]. WASTE MANAGEMENT & RESEARCH,2020:9.
APA	Yao, Zhitong,Yu, Shaoqi,Su, Weiping,Wu, Weihong,Tang, Junhong,&Qi, Wei.(2020).Kinetic studies on the pyrolysis of plastic waste using a combination of model-fitting and model-free methods.WASTE MANAGEMENT & RESEARCH,9.
MLA	Yao, Zhitong,et al."Kinetic studies on the pyrolysis of plastic waste using a combination of model-fitting and model-free methods".WASTE MANAGEMENT & RESEARCH (2020):9.