Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Kinetic study on the slow pyrolysis of nonmetal fraction of waste printed circuit boards (NMF-WPCBs) | |
Yao, Zhitong1; Xiong, Jingjing1; Yu, Shaoqi1; Su, Weiping1; Wu, Weihong1; Tang, Junhong1; Wu, Daidai2
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| 2020-01-10 | |
| Source Publication | WASTE MANAGEMENT & RESEARCH
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| ISSN | 0734-242X |
| Pages | 8 |
| Corresponding Author | Yao, Zhitong(sxyzt@126.com) |
| Abstract | In this study, the pyrolysis behaviour of nonmetal fraction of waste printed circuit boards (NMF-WPCBs) was studied based on five model-free methods and distributed activation energy model (DAEM). The possible decomposition mechanism was further probed using the Criado method. Thermogravimetric analysis indicated that the NMF-WPCBs pyrolysis process could be divided into three stages with temperatures of 37-330 degrees C, 330-380 degrees C and 380-1000 degrees C. The mass loss at different heating rate was determined as 26.85-29.98%, 13.47-24.21% and 20.43-23.36% for these stages, respectively. The activation energy (E-alpha) from various model-free methods first increased with degree of conversion (alpha) increasing from 0.05 to 0.275, and then decreased beyond this range. The coefficient (R) from the Flynn-Wall-Ozawa (FWO) method was higher, and the resulting E-alpha fell into the range of 214.947-565.660 kJ mol(-1). For the DAEM method, the average E-alpha value was determined as 337.044 kJ mol(-1), comparable with 329.664 kJ mol(-1) from the FWO method. The thermal decomposition kinetics of NMF-WPCBs could be better described by the second-order reaction. |
| Keyword | Electronic waste pyrolysis kinetics model-free method distributed activation energy model Criado method |
| DOI | 10.1177/0734242X19896630 |
| WOS Keyword | ACTIVATION-ENERGY ; THERMAL-DEGRADATION ; MODEL-FREE ; CO-PYROLYSIS ; TRANSFORMATION ; APPLICABILITY ; COMBUSTION ; PLASTICS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51911530460] ; National Natural Science Foundation of China[21911530766] ; National Natural Science Foundation of China[51606055] ; Zhejiang Provincial Natural Science Foundation of China[LY19B070008] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| Funding Organization | National Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| WOS ID | WOS:000507191700001 |
| Publisher | SAGE PUBLICATIONS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26427 |
| 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, Hangzhou 310018, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Peoples R China |
| Recommended Citation GB/T 7714 | Yao, Zhitong,Xiong, Jingjing,Yu, Shaoqi,et al. Kinetic study on the slow pyrolysis of nonmetal fraction of waste printed circuit boards (NMF-WPCBs)[J]. WASTE MANAGEMENT & RESEARCH,2020:8. |
| APA | Yao, Zhitong.,Xiong, Jingjing.,Yu, Shaoqi.,Su, Weiping.,Wu, Weihong.,...&Wu, Daidai.(2020).Kinetic study on the slow pyrolysis of nonmetal fraction of waste printed circuit boards (NMF-WPCBs).WASTE MANAGEMENT & RESEARCH,8. |
| MLA | Yao, Zhitong,et al."Kinetic study on the slow pyrolysis of nonmetal fraction of waste printed circuit boards (NMF-WPCBs)".WASTE MANAGEMENT & RESEARCH (2020):8. |
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