Pyrolysis mechanism and recycling strategy of end-of-life photovoltaic modules based on the experiment and the density functional theory
文献类型：期刊论文
| 作者 | Tao, Ran1,2; Li, Bin1,2; Wu, Yufeng1,2; Zhang, Wei1,2; Yuan, Haoran3; Gu, Jing3; Chen, Yong3 |
| 刊名 | POLYMER DEGRADATION AND STABILITY
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 217页码:12 |
| 关键词 | Pyrolysis Photovoltaic (PV) Ethylene -vinyl -acetate (EVA) Density functional theory (DFT) Recycling |
| ISSN号 | 0141-3910 |
| DOI | 10.1016/j.polymdegradstab.2023.110545 |
| 通讯作者 | Wu, Yufeng(wuyufeng3r@126.com) |
| 英文摘要 | Recent advancements in renewable energy have enabled a reduction of fossil fuel usage. However, the so-called energy waste, such as end-of-life (EoL) photovoltaic (PV) modules, has become a simultaneous emerging issue in the field of solid waste management. Debonding of ethylene-vinyl-acetate (EVA) copolymer is critical for recycling EoL PV modules. The separation of organic substances may be done effectively using pyrolysis technology. Therefore, in this work we investigated the pyrolysis characteristic and mechanism of EVA. Based on TG, TGFTIR, and Py-GC/MS, the pyrolysis products and pyrolysis characteristics of EVA were examined. Activation energies and reaction mechanisms were determined through iso-conversional model-free and model-fitting methods. Combined with density functional theory (DFT) calculations, the pyrolysis mechanism of EVA was discussed. Our research shows that the pyrolysis technology can almost completely decompose EVA without residue and the EVA pyrolysis can be divided into two stages. Combined with DFT calculation, it was found that in the stage I, acetoxy was removed to generate acetic acid, and in the stage II, the main chain of EVA was broken to generate olefins. The recycling strategy based on two-step pyrolysis of Eol PV modules was accordingly proposed. |
| WOS关键词 | ETHYLENE-VINYL ACETATE ; THERMOCHEMISTRY ; KINETICS |
| 资助项目 | National Key Research and Development Program of China[2018YFC1902504] |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001088519800001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/40009]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wu, Yufeng |
| 作者单位 | 1.Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China 2.Beijing Univ Technol, Inst Circular Econ, 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 | Tao, Ran,Li, Bin,Wu, Yufeng,et al. Pyrolysis mechanism and recycling strategy of end-of-life photovoltaic modules based on the experiment and the density functional theory[J]. POLYMER DEGRADATION AND STABILITY,2023,217:12. |
| APA | Tao, Ran.,Li, Bin.,Wu, Yufeng.,Zhang, Wei.,Yuan, Haoran.,...&Chen, Yong.(2023).Pyrolysis mechanism and recycling strategy of end-of-life photovoltaic modules based on the experiment and the density functional theory.POLYMER DEGRADATION AND STABILITY,217,12. |
| MLA | Tao, Ran,et al."Pyrolysis mechanism and recycling strategy of end-of-life photovoltaic modules based on the experiment and the density functional theory".POLYMER DEGRADATION AND STABILITY 217(2023):12. |
入库方式： OAI收割
来源：广州能源研究所
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