Rui Zhou, Xianfeng Liu, Xueqi Jia, Baisheng Nie, Yankun Ma, Chuang Li
{"title":"Study on the Influence of Phase Change Process on the Desorption Characteristics of Gas-Containing Anthracite in Phase Change Heat Storage Materials","authors":"Rui Zhou, Xianfeng Liu, Xueqi Jia, Baisheng Nie, Yankun Ma, Chuang Li","doi":"10.3103/S0361521924700186","DOIUrl":null,"url":null,"abstract":"<p>The slow desorption rate of coal body gas is easy to cause coal and gas outburst accidents, the temperature has an important influence on the desorption process of gas, and increasing the temperature can significantly improve the gas desorption rate. Based on this law, inorganic phase-change energy storage materials with a phase change temperature of 58°C were selected to study the influence range of the phase change process of materials with different contents on the temperature of coal body by comparative experiments. At the same time, the effect of the change of temperature on the desorption amount and desorption rate of gas desorption within coal was obtained by applying the phase change material to the adsorption/desorption experimental system. It was found that after the addition of the phase change material, the gas-containing coal which had completed the desorption process restarted to desorb the gas, and the final stabilized desorption amount was 1.709 cm<sup>3</sup>/g with an increase of 0.185 cm<sup>3</sup>/g, accounting for 12.14% of the desorption amount under normal conditions, which indicates that the addition of phase change materials can improve the desorption rate of coal samples.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2024-08-07","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/S0361521924700186","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
The slow desorption rate of coal body gas is easy to cause coal and gas outburst accidents, the temperature has an important influence on the desorption process of gas, and increasing the temperature can significantly improve the gas desorption rate. Based on this law, inorganic phase-change energy storage materials with a phase change temperature of 58°C were selected to study the influence range of the phase change process of materials with different contents on the temperature of coal body by comparative experiments. At the same time, the effect of the change of temperature on the desorption amount and desorption rate of gas desorption within coal was obtained by applying the phase change material to the adsorption/desorption experimental system. It was found that after the addition of the phase change material, the gas-containing coal which had completed the desorption process restarted to desorb the gas, and the final stabilized desorption amount was 1.709 cm3/g with an increase of 0.185 cm3/g, accounting for 12.14% of the desorption amount under normal conditions, which indicates that the addition of phase change materials can improve the desorption rate of coal samples.
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.