Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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
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| 2020-01-20 | |
| Source Publication | WASTE MANAGEMENT & RESEARCH
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| ISSN | 0734-242X |
| Pages | 9 |
| Corresponding Author | Yao, Zhitong(sxyzt@126.com) |
| Abstract | 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. |
| Keyword | Plastic waste acrylonitrile-butadiene-styrene pyrolysis kinetics model-free method model-fitting method |
| DOI | 10.1177/0734242X19897814 |
| WOS Keyword | THERMAL-DEGRADATION ; ACTIVATION-ENERGY ; STATE ; ABS ; MECHANISM ; BEHAVIOR ; CRYSTALLIZATION ; PARAMETERS ; COALS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Zhejiang Provincial Natural Science Foundation of China[LY19B070008] ; National Natural Science Foundation of China[51911530460] ; National Natural Science Foundation of China[51606055] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| Funding Organization | Zhejiang Provincial Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| WOS ID | WOS:000508527000001 |
| Publisher | SAGE PUBLICATIONS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26347 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Yao, Zhitong |
| Affiliation | 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 |
| Recommended Citation 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. |
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