Xuebin Lin, Yuanbo Huang, Xiaodong Zhang, Hongzhou He
{"title":"Thermogravimetric Study on Co-pyrolysis of Different Rank Coals and Plastics","authors":"Xuebin Lin, Yuanbo Huang, Xiaodong Zhang, Hongzhou He","doi":"10.3103/S0361521924700538","DOIUrl":null,"url":null,"abstract":"<p>China is endowed with abundant coal reserves, yet it remains heavily reliant on oil and natural gas imports. Pyrolysis of coal into gas and oil products presents a promising solution to address China’s energy security concerns. Co-pyrolysis of coal and plastic can enhance the production of liquid and gas products. Thermogravimetric experiments were conducted to explore the effects of mixing ratio, coal type (bituminous and anthracite), and plastic type (polystyrene PS and polyethylene PE) on the co-pyrolysis of coal and plastic. The results showed that the interaction during the co-pyrolysis of coal and plastic occurred mainly in the temperature interval of plastic weight loss and contributed to the increase of pyrolytic conversion. Compared to theoretical calculations, conversion rates of coal/plastic blenders co-pyrolysis can be improved mostly at blending ratios of 50% PS and 75% PE, achieving increases of 7.9–8.9% and 4.2–7.2% for PS/coal and PE/coal at 800°C respectively. The synergistic effect of coal type on co-pyrolysis is influenced by both the blending ratio and the plastic type used. So does plastic type. Finally, the kinetic analysis of co-pyrolysis was carried out. It is found different weight loss stage of co-pyrolysis processes can be expressed by first order reaction.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 2","pages":"88 - 96"},"PeriodicalIF":0.8000,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid Fuel Chemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.3103/S0361521924700538","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
China is endowed with abundant coal reserves, yet it remains heavily reliant on oil and natural gas imports. Pyrolysis of coal into gas and oil products presents a promising solution to address China’s energy security concerns. Co-pyrolysis of coal and plastic can enhance the production of liquid and gas products. Thermogravimetric experiments were conducted to explore the effects of mixing ratio, coal type (bituminous and anthracite), and plastic type (polystyrene PS and polyethylene PE) on the co-pyrolysis of coal and plastic. The results showed that the interaction during the co-pyrolysis of coal and plastic occurred mainly in the temperature interval of plastic weight loss and contributed to the increase of pyrolytic conversion. Compared to theoretical calculations, conversion rates of coal/plastic blenders co-pyrolysis can be improved mostly at blending ratios of 50% PS and 75% PE, achieving increases of 7.9–8.9% and 4.2–7.2% for PS/coal and PE/coal at 800°C respectively. The synergistic effect of coal type on co-pyrolysis is influenced by both the blending ratio and the plastic type used. So does plastic type. Finally, the kinetic analysis of co-pyrolysis was carried out. It is found different weight loss stage of co-pyrolysis processes can be expressed by first order reaction.
期刊介绍:
The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.