Thermostatic pyrolysis decapsulation and pollution control of waste crystalline silicon photovoltaic panels: Kinetic analysis and organics evolution

IF 6 2区 工程技术 Q2 ENERGY & FUELS
Mingxing Huang, Qingming Song, Yuting Wang, Ya Liu, Zhenming Xu
{"title":"Thermostatic pyrolysis decapsulation and pollution control of waste crystalline silicon photovoltaic panels: Kinetic analysis and organics evolution","authors":"Mingxing Huang,&nbsp;Qingming Song,&nbsp;Yuting Wang,&nbsp;Ya Liu,&nbsp;Zhenming Xu","doi":"10.1016/j.solener.2025.113765","DOIUrl":null,"url":null,"abstract":"<div><div>The rapid expansion of photovoltaics is anticipated to result in a substantial accumulation of waste crystalline silicon photovoltaics (c-Si PV) panels that composed of glass, silicon wafers, and backsheets. Given its ultra-thin, highly laminated, multi-layered structures encapsulated with polymers, decapsulation is essential for subsequent component separation and recovery. Pyrolysis has emerged as a promising method for decapsulation, yet current research is limited to thermal decomposition of waste c-Si PV panels during the slow heating pyrolysis process, the kinetic mechanism and organics evolution necessary remain unknown. This study proposed the thermostatic pyrolysis of waste c-Si PV panels, and investigated kinetics analysis and organics evolution for efficient decapsulation and pollution control. Our results indicated that decapsulation efficiency can reach 98 % at 600 °C within 7 min, and conformed to the Avrami-Erofeev model, which predicts decapsulation performance across different scenarios well. The thermostatic pyrolysis process generates acetic acid, hydrocarbons, aromatic hydrocarbon compounds, and fluorine-containing substances, all of which can be converted and utilized for pollution control. Further environmental impact assessments demonstrate its minimized environmental impacts over conventional ones. This work provides a viable pathway for the efficient and environmental-friendly decapsulation of waste c-Si PV panels, thereby promoting the development of waste c-Si PV panels recycling industry.</div></div>","PeriodicalId":428,"journal":{"name":"Solar Energy","volume":"300 ","pages":"Article 113765"},"PeriodicalIF":6.0000,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0038092X25005286","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0

Abstract

The rapid expansion of photovoltaics is anticipated to result in a substantial accumulation of waste crystalline silicon photovoltaics (c-Si PV) panels that composed of glass, silicon wafers, and backsheets. Given its ultra-thin, highly laminated, multi-layered structures encapsulated with polymers, decapsulation is essential for subsequent component separation and recovery. Pyrolysis has emerged as a promising method for decapsulation, yet current research is limited to thermal decomposition of waste c-Si PV panels during the slow heating pyrolysis process, the kinetic mechanism and organics evolution necessary remain unknown. This study proposed the thermostatic pyrolysis of waste c-Si PV panels, and investigated kinetics analysis and organics evolution for efficient decapsulation and pollution control. Our results indicated that decapsulation efficiency can reach 98 % at 600 °C within 7 min, and conformed to the Avrami-Erofeev model, which predicts decapsulation performance across different scenarios well. The thermostatic pyrolysis process generates acetic acid, hydrocarbons, aromatic hydrocarbon compounds, and fluorine-containing substances, all of which can be converted and utilized for pollution control. Further environmental impact assessments demonstrate its minimized environmental impacts over conventional ones. This work provides a viable pathway for the efficient and environmental-friendly decapsulation of waste c-Si PV panels, thereby promoting the development of waste c-Si PV panels recycling industry.

Abstract Image

废晶硅光伏板的恒温热解解封装与污染控制:动力学分析与有机物演化
光伏发电的快速扩张预计将导致大量堆积由玻璃、硅晶片和背板组成的废弃晶体硅光伏板(c-Si PV)。由于其超薄、高度层压、多层结构被聚合物包裹,解封装对于随后的组分分离和回收至关重要。热解是一种很有前途的解封装方法,但目前的研究仅限于在缓慢加热热解过程中对废c-Si光伏板的热分解,其动力学机制和必要的有机物演化尚不清楚。本研究提出了c-Si废弃光伏板的恒温热解,并研究了动力学分析和有机物演化,以实现高效解封和污染控制。我们的研究结果表明,在600°C下,7分钟内的解封效率可以达到98%,并且符合Avrami-Erofeev模型,该模型可以很好地预测不同情况下的解封性能。恒温热解过程产生乙酸、碳氢化合物、芳香烃化合物和含氟物质,这些物质都可以转化利用,用于污染治理。进一步的环境影响评估表明,它对环境的影响比传统的影响最小。本研究为废旧碳硅光伏板的高效环保解封提供了可行途径,从而促进废旧碳硅光伏板回收产业的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Solar Energy
Solar Energy 工程技术-能源与燃料
CiteScore
13.90
自引率
9.00%
发文量
0
审稿时长
47 days
期刊介绍: Solar Energy welcomes manuscripts presenting information not previously published in journals on any aspect of solar energy research, development, application, measurement or policy. The term "solar energy" in this context includes the indirect uses such as wind energy and biomass
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信