New insights into brominated epoxy resin type WPCBs pyrolysis mechanisms: Integrated experimental and DFT simulation studies
文献类型：期刊论文
| 作者 | Wu, Yufeng1,2; Tao, Ran1,2; Li, Bin1,2; Hu, Chenwei1,2; Zhang, Wei1,2; Yuan, Haoran3; Gu, Jing3; Chen, Yong3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-02-20 |
| 卷号 | 912页码:11 |
| 关键词 | Pyrolysis Waste printed circuit boards (WPCBs) Brominated epoxy resins (BERs) Density functional theory (DFT) Reaction mechanisms |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.169610 |
| 通讯作者 | Li, Bin(thlibin@sina.com) |
| 英文摘要 | Pyrolysis is a recycling technology for waste circuit boards (WPCBs) with a wide range of applications. In this research, the brominated epoxy resin (BER) type WPCBs were taken as the research object, and the optimal pyrolysis process parameters were determined. Combined with experiments and density functional theory (DFT) calculations, the pyrolysis gaseous generation pattern and product distribution of BER type WPCBs were analyzed, and the generation mechanism of phenol, bromide and other pyrolysis products was investigated in depth. The results of the study showed that the pyrolysis rate of WPCBs exceeded 95 % under optimal reaction conditions. In the initial phase of the pyrolysis of WPCBs, the BER's C-O bonds and a portion of Ph-Br bonds will be broken, leading to the production of intermediates such propylene oxide, bisphenol A, isopropyl alcohol, tetrabromobisphenol A and HBr. Among them, propylene oxide can generate ethylene oxide through free radical reaction. In the second stage, intermediates such as bisphenol A undergo homolytic cleavage and radical addition to form phenols, bromides, alcohols, ketones and other pyrolysis products. |
| WOS关键词 | PRINTED-CIRCUIT BOARDS ; E-WASTE ; THERMAL-DECOMPOSITION ; CO-PYROLYSIS ; RECOVERY ; THERMOCHEMISTRY ; KINETICS |
| 资助项目 | National Key Research and Development Program of China[2018YFC1902504] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001152642700001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/40753]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Bin |
| 作者单位 | 1.Beijing Univ Technol, Inst Circular Econ, Beijing 100124, Peoples R China 2.Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yufeng,Tao, Ran,Li, Bin,et al. New insights into brominated epoxy resin type WPCBs pyrolysis mechanisms: Integrated experimental and DFT simulation studies[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,912:11. |
| APA | Wu, Yufeng.,Tao, Ran.,Li, Bin.,Hu, Chenwei.,Zhang, Wei.,...&Chen, Yong.(2024).New insights into brominated epoxy resin type WPCBs pyrolysis mechanisms: Integrated experimental and DFT simulation studies.SCIENCE OF THE TOTAL ENVIRONMENT,912,11. |
| MLA | Wu, Yufeng,et al."New insights into brominated epoxy resin type WPCBs pyrolysis mechanisms: Integrated experimental and DFT simulation studies".SCIENCE OF THE TOTAL ENVIRONMENT 912(2024):11. |
入库方式： OAI收割
来源：广州能源研究所
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