Easily recoverable and reusable p-toluenesulfonic acid for faster hydrolysis of waste polyethylene terephthalate
文献类型：期刊论文
| 作者 | Yang, Weisheng1; Wang, Juan1; Jiao, Liang2; Song, Yang1; Li, Chang1; Hu, Chaoquan1,3 |
| 刊名 | GREEN CHEMISTRY
 |
| 出版日期 | 2022-02-07 |
| 卷号 | 24期号:3页码:1362-1372 |
| ISSN号 | 1463-9262 |
| DOI | 10.1039/d1gc04567a |
| 英文摘要 | Common technologies for waste polyethylene terephthalate (PET) hydrolysis generally use strong acids or alkalis as catalysts; however, these processes are costly and generate a large amount of acid, alkali, and salt wastewater. In addition, these catalysts are difficult to recycle and reuse, which is not in line with the concept of sustainable development. This study describes the use of concentrated p-toluenesulfonic acid (PTSA) as an acid catalyst for PET hydrolysis under relatively mild conditions, enabling the degradation of approximately 100% of PET into 96.2% of terephthalic acid (TPA) within 90 minutes at 150 degrees C. A similar degradation efficiency can only be achieved at 150 degrees C using concentrated sulfuric acid for over 5 h. The generated TPA was easily separated from the hydrolysis system via filtration. The used PTSA was easily recovered from the filtrate after TPA collection using simple concentration and crystallization technologies. The recovered PTSA still maintained excellent catalytic efficiency for PET hydrolysis after five consecutive cycles. Furthermore, the kinetics of the reaction confirmed that the PET hydrolysis catalyzed by concentrated PTSA conforms to a first-order reaction with a relatively low apparent activation energy of 76.4-125.4 kJ mol(-1). Finally, the technical feasibility and environmental impact of a scale-up were evaluated using Aspen Plus simulations. Overall, this work proposes a feasible and green strategy for the low-cost and environmentally friendly hydrolysis of waste PET. |
| WOS关键词 | SULFURIC-ACID ; PET ; POLY(ETHYLENE-TEREPHTHALATE) ; DEGRADATION ; KINETICS ; ALCOHOLYSIS ; PRODUCTS ; POWDER |
| 资助项目 | Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; National Natural Science Foundation of China[22078328] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000746663200001 |
| 资助机构 | Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/51796]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Hu, Chaoquan |
| 作者单位 | 1.Nanjing IPE Inst Green Mfg Ind, Nanjing 211135, Jiangsu, Peoples R China 2.Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Nanjing 210037, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Weisheng,Wang, Juan,Jiao, Liang,et al. Easily recoverable and reusable p-toluenesulfonic acid for faster hydrolysis of waste polyethylene terephthalate[J]. GREEN CHEMISTRY,2022,24(3):1362-1372. |
| APA | Yang, Weisheng,Wang, Juan,Jiao, Liang,Song, Yang,Li, Chang,&Hu, Chaoquan.(2022).Easily recoverable and reusable p-toluenesulfonic acid for faster hydrolysis of waste polyethylene terephthalate.GREEN CHEMISTRY,24(3),1362-1372. |
| MLA | Yang, Weisheng,et al."Easily recoverable and reusable p-toluenesulfonic acid for faster hydrolysis of waste polyethylene terephthalate".GREEN CHEMISTRY 24.3(2022):1362-1372. |
入库方式： OAI收割
来源：过程工程研究所
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