{"title":"镁离子对莱阳褐煤燃烧行为的影响","authors":"Ying Chen, Shixian Fang, Xiangchun Liu, Ping Cui","doi":"10.3103/S0361521924700502","DOIUrl":null,"url":null,"abstract":"<p>The effects of Mg<sup>2+</sup> on the combustion behavior of Loy Yang lignite (LY) were studied. The combustion behaviors of all samples were investigated using a thermogravimetric (TG) analyzer. Moreover, all samples were characterized using Fourier transform infrared (FT-IR) spectrometer with a DRIFT model, scanning electron microscope (SEM), and a specific surface area and porosity analyzer. The results showed that Mg<sup>2+</sup> was successfully loaded into the acid-washed sample (LYA) in the form of carboxylates. The addition of Mg<sup>2+</sup> blocked partial pores of LYA. Compared with that of LYA, the peak temperatures of the Mg<sup>2+</sup> loaded samples (LYA<sub>Mg0.05</sub> and LYA<sub>Mg0.1</sub>) decreased by 2.0 and 2.4%, respectively. The activation energies of LYA<sub>Mg0.1</sub> and LYA<sub>Mg0.05</sub> were lower than that of LYA. Overall, Mg<sup>2+</sup> could catalyze the combustion of lignite. The higher the loading content, the more obvious the catalytic effect is. Additionally, we proposed a mechanism of Mg<sup>2+</sup> catalyzing the combustion of lignite, i.e., Mg<sup>2+</sup> acts as an oxygen carrier, which could enhance the transport of oxygen. Consequently, a catalytic effect of Mg<sup>2+</sup> on lignite burning was observed.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 1","pages":"53 - 59"},"PeriodicalIF":0.8000,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Magnesium Ion on Combustion Behavior of Loy Yang Lignite\",\"authors\":\"Ying Chen, Shixian Fang, Xiangchun Liu, Ping Cui\",\"doi\":\"10.3103/S0361521924700502\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The effects of Mg<sup>2+</sup> on the combustion behavior of Loy Yang lignite (LY) were studied. The combustion behaviors of all samples were investigated using a thermogravimetric (TG) analyzer. Moreover, all samples were characterized using Fourier transform infrared (FT-IR) spectrometer with a DRIFT model, scanning electron microscope (SEM), and a specific surface area and porosity analyzer. The results showed that Mg<sup>2+</sup> was successfully loaded into the acid-washed sample (LYA) in the form of carboxylates. The addition of Mg<sup>2+</sup> blocked partial pores of LYA. Compared with that of LYA, the peak temperatures of the Mg<sup>2+</sup> loaded samples (LYA<sub>Mg0.05</sub> and LYA<sub>Mg0.1</sub>) decreased by 2.0 and 2.4%, respectively. The activation energies of LYA<sub>Mg0.1</sub> and LYA<sub>Mg0.05</sub> were lower than that of LYA. Overall, Mg<sup>2+</sup> could catalyze the combustion of lignite. The higher the loading content, the more obvious the catalytic effect is. Additionally, we proposed a mechanism of Mg<sup>2+</sup> catalyzing the combustion of lignite, i.e., Mg<sup>2+</sup> acts as an oxygen carrier, which could enhance the transport of oxygen. Consequently, a catalytic effect of Mg<sup>2+</sup> on lignite burning was observed.</p>\",\"PeriodicalId\":779,\"journal\":{\"name\":\"Solid Fuel Chemistry\",\"volume\":\"59 1\",\"pages\":\"53 - 59\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2025-02-27\",\"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/S0361521924700502\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid Fuel Chemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.3103/S0361521924700502","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}
Effects of Magnesium Ion on Combustion Behavior of Loy Yang Lignite
The effects of Mg2+ on the combustion behavior of Loy Yang lignite (LY) were studied. The combustion behaviors of all samples were investigated using a thermogravimetric (TG) analyzer. Moreover, all samples were characterized using Fourier transform infrared (FT-IR) spectrometer with a DRIFT model, scanning electron microscope (SEM), and a specific surface area and porosity analyzer. The results showed that Mg2+ was successfully loaded into the acid-washed sample (LYA) in the form of carboxylates. The addition of Mg2+ blocked partial pores of LYA. Compared with that of LYA, the peak temperatures of the Mg2+ loaded samples (LYAMg0.05 and LYAMg0.1) decreased by 2.0 and 2.4%, respectively. The activation energies of LYAMg0.1 and LYAMg0.05 were lower than that of LYA. Overall, Mg2+ could catalyze the combustion of lignite. The higher the loading content, the more obvious the catalytic effect is. Additionally, we proposed a mechanism of Mg2+ catalyzing the combustion of lignite, i.e., Mg2+ acts as an oxygen carrier, which could enhance the transport of oxygen. Consequently, a catalytic effect of Mg2+ on lignite burning was observed.
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.
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