CORC  > 广州能源研究所  > 中国科学院广州能源研究所
Kinetic studies on the pyrolysis of plastic waste using a combination of model-fitting and model-free methods
Yao, Zhitong1; Yu, Shaoqi1; Su, Weiping1; Wu, Weihong1; Tang, Junhong1; Qi, Wei2
刊名WASTE MANAGEMENT & RESEARCH
2020-01-20
页码9
关键词Plastic waste acrylonitrile-butadiene-styrene pyrolysis kinetics model-free method model-fitting method
ISSN号0734-242X
DOI10.1177/0734242X19897814
通讯作者Yao, Zhitong(sxyzt@126.com)
英文摘要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.
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关键词THERMAL-DEGRADATION ; ACTIVATION-ENERGY ; STATE ; ABS ; MECHANISM ; BEHAVIOR ; CRYSTALLIZATION ; PARAMETERS ; COALS
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
出版者SAGE PUBLICATIONS LTD
WOS记录号WOS:000508527000001
资助机构Zhejiang Provincial Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型期刊论文
源URL[http://ir.giec.ac.cn/handle/344007/26346]  
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.
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace