{"title":"Hydrogenation Kinetics of Coal and Its Heavy Liquefied Products","authors":"Shigang Kang, Xinting Zhou, Songtao Liang, Hengfu Shui, Zhicai Wang, Zhiping Lei, Shibiao Ren, Jingchong Yan, Zhanku Li, Chunxiu Pan, Honglei Yan, Weidong Zhang","doi":"10.3103/S0361521925700235","DOIUrl":null,"url":null,"abstract":"<p>The distribution and kinetic analysis of catalytic hydrogenation products derived from preasphaltenes (PA) were examined. A kinetic model was developed using the lump kinetic method to simulate the hydrogenation of PA catalyzed by FeS and S. The study revealed that PA is directly converted into asphaltenes (AS) and oil, followed by the further hydrocracking of AS into oil and gas products. At higher temperatures, there is a noticeable regression of PA to char and AS back to PA. Increased temperature and longer reaction time were found to enhance the conversion of PA and the yield of oil and gas products. Under conditions of 400°C and 60 min, the hydrogenation of PA achieved a conversion rate of 75.92% with an oil and gas yield of 32.76%. The hydrogenation conversions from the model corresponded well with experimental data, and the activation energies ranged from 67 to 224 kJ · mol<sup>–1</sup>.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 4","pages":"328 - 335"},"PeriodicalIF":0.9000,"publicationDate":"2025-07-22","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/S0361521925700235","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 distribution and kinetic analysis of catalytic hydrogenation products derived from preasphaltenes (PA) were examined. A kinetic model was developed using the lump kinetic method to simulate the hydrogenation of PA catalyzed by FeS and S. The study revealed that PA is directly converted into asphaltenes (AS) and oil, followed by the further hydrocracking of AS into oil and gas products. At higher temperatures, there is a noticeable regression of PA to char and AS back to PA. Increased temperature and longer reaction time were found to enhance the conversion of PA and the yield of oil and gas products. Under conditions of 400°C and 60 min, the hydrogenation of PA achieved a conversion rate of 75.92% with an oil and gas yield of 32.76%. The hydrogenation conversions from the model corresponded well with experimental data, and the activation energies ranged from 67 to 224 kJ · mol–1.
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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