{"title":"Thermochemical recycling of polystyrene waste by pyrolysis using a pilot-scale auger reactor: Process demonstration in a relevant environment","authors":"","doi":"10.1016/j.resconrec.2024.107869","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents the pyrolysis of polystyrene waste using a single-auger pyrolysis reactor at an industrially relevant scale, i.e. within the fifth technology readiness level (TRL-5). In order to gain a better understanding of the influence of the main variables involved in this technology, a thorough experimental campaign was performed with PS feed rates of 6 and 9 kg/h, covering a temperature range of 450–600 °C. These variables influence not only the distribution of the products, but also the presence of compounds that may affect the suitability of the pyro-oil for re-polymerisation processes. In this sense, gas chromatography (GC), gas chromatography coupled to mass spectrometry (GC/MS) and simulated distillation (SimDist) of the resulting pyro-oils provided valuable insights into styrene purification. The data collected confirms the strength of the auger reactor for thermochemical recycling of polystyrene waste, and contributes to the future development of the plastics circularity on an industrial scale.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":null,"pages":null},"PeriodicalIF":11.2000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0921344924004622/pdfft?md5=819ffdbe14c7dffd2032f6894f430dfd&pid=1-s2.0-S0921344924004622-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Conservation and Recycling","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921344924004622","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents the pyrolysis of polystyrene waste using a single-auger pyrolysis reactor at an industrially relevant scale, i.e. within the fifth technology readiness level (TRL-5). In order to gain a better understanding of the influence of the main variables involved in this technology, a thorough experimental campaign was performed with PS feed rates of 6 and 9 kg/h, covering a temperature range of 450–600 °C. These variables influence not only the distribution of the products, but also the presence of compounds that may affect the suitability of the pyro-oil for re-polymerisation processes. In this sense, gas chromatography (GC), gas chromatography coupled to mass spectrometry (GC/MS) and simulated distillation (SimDist) of the resulting pyro-oils provided valuable insights into styrene purification. The data collected confirms the strength of the auger reactor for thermochemical recycling of polystyrene waste, and contributes to the future development of the plastics circularity on an industrial scale.
期刊介绍:
The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns.
Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.