{"title":"Ferrum effect on pyrolysis of IL swelling modified coal: Experiment and simulation","authors":"","doi":"10.1016/j.mineng.2024.108910","DOIUrl":null,"url":null,"abstract":"<div><p>Investigate the effects of Ionic Liquid and metal ions on the swelling and pyrolysis characteristics. The simulation results show that IL can weaken intermolecular hydrogen bond of coal, Magnetic Ionic Liquid has a stronger modification effect after adding Fe ions, and hydrogen bond weakening leads to the improvement of coal swelling degree. After [Bmim]Cl modification, the swelling degree is increased by 17.37% compared with raw coal, and after [Bmim]FeCl<sub>4</sub> treatment, the swelling degree is further improved. Ionic liquid swelling also has a better effect on subsequent pyrolysis of coal samples, the modification effect of [Bmim]FeCl<sub>4</sub> is more significant, which increases by 6.77%. The swelling of MIL significantly reduces the pyrolysis activation energy of coal and thermochemical reaction temperature. On the one hand, the content of heavy groups in pyrolysis products is reduced, and on the other hand, the target of carbon emission reduction can be achieved.</p></div>","PeriodicalId":18594,"journal":{"name":"Minerals Engineering","volume":null,"pages":null},"PeriodicalIF":4.9000,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Minerals Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S089268752400339X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Investigate the effects of Ionic Liquid and metal ions on the swelling and pyrolysis characteristics. The simulation results show that IL can weaken intermolecular hydrogen bond of coal, Magnetic Ionic Liquid has a stronger modification effect after adding Fe ions, and hydrogen bond weakening leads to the improvement of coal swelling degree. After [Bmim]Cl modification, the swelling degree is increased by 17.37% compared with raw coal, and after [Bmim]FeCl4 treatment, the swelling degree is further improved. Ionic liquid swelling also has a better effect on subsequent pyrolysis of coal samples, the modification effect of [Bmim]FeCl4 is more significant, which increases by 6.77%. The swelling of MIL significantly reduces the pyrolysis activation energy of coal and thermochemical reaction temperature. On the one hand, the content of heavy groups in pyrolysis products is reduced, and on the other hand, the target of carbon emission reduction can be achieved.
期刊介绍：
The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.
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