{"title":"Reducing the Thermal Oxidation of Coal by Steeping in Lime Solutions","authors":"Yu. F. Patrakov, S. A. Semenova, A. E. Majorov","doi":"10.3103/S1068364X25600046","DOIUrl":null,"url":null,"abstract":"<div><p>This research focuses on how steeping with industrial mixtures based on lime affects the oxidative pyrolysis of coal of limited metamorphic development that is inclined to self-ignition. Passivating solutions considered include the filtrate and suspension of a lime solution, which are traditionally used to suppress coal oxidation. Treatment of coal with lime solutions is accompanied both by physical adsorption of calcium ions on the nonuniform coal surface and by chemical reaction with functional groups that are susceptible to oxidation. The fundamental differences in the oxidation of coal of little and moderate metamorphic development with lime solutions are identified. After treatment of coal surfaces with lime solutions, less oxidation is observed.</p></div>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 1","pages":"1 - 6"},"PeriodicalIF":0.4000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coke and Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068364X25600046","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
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Abstract
This research focuses on how steeping with industrial mixtures based on lime affects the oxidative pyrolysis of coal of limited metamorphic development that is inclined to self-ignition. Passivating solutions considered include the filtrate and suspension of a lime solution, which are traditionally used to suppress coal oxidation. Treatment of coal with lime solutions is accompanied both by physical adsorption of calcium ions on the nonuniform coal surface and by chemical reaction with functional groups that are susceptible to oxidation. The fundamental differences in the oxidation of coal of little and moderate metamorphic development with lime solutions are identified. After treatment of coal surfaces with lime solutions, less oxidation is observed.
期刊介绍：
The journal publishes scientific developments and applications in the field of coal beneficiation and preparation for coking, coking processes, design of coking ovens and equipment, by-product recovery, automation of technological processes, ecology and economics. It also presents indispensable information on the scientific events devoted to thermal rectification, use of smokeless coal as an energy source, and manufacture of different liquid and solid chemical products.
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