Review of Research on Coke Gasification in the Blast Furnace with Elevated Hydrogen Content and Determination of Coke’s Postreactive Strength. 4. Change in Coke Strength after Gasification in the Presence of H2O

IF 0.4 Q4 ENGINEERING, CHEMICAL

Coke and Chemistry Pub Date : 2025-02-24 DOI:10.3103/S1068364X24601069

O. V. Golybev, P. I. Chernousov, S. V. Myasoyedov, A. V. Karataeva

{"title":"Review of Research on Coke Gasification in the Blast Furnace with Elevated Hydrogen Content and Determination of Coke’s Postreactive Strength. 4. Change in Coke Strength after Gasification in the Presence of H2O","authors":"O. V. Golybev, P. I. Chernousov, S. V. Myasoyedov, A. V. Karataeva","doi":"10.3103/S1068364X24601069","DOIUrl":null,"url":null,"abstract":"<div>Previous articles in this series presented thermodynamic analysis of the reactions in the gasification of coke in the presence of H2O and some parameters of this process in the laboratory. The sample porosity was estimated qualitatively (visually) and quantitatively by means of specialized image analysis software. The coke strength was assessed by the standard method of determining the postreactive strength CSR, introducing corrections as necessary if the sample size and mass were too small. In this final article, those results are discussed. The presence of moisture intensifies gasification, consequently decreasing its hot strength. For gasification by reaction with CO2, CSR is significantly higher than in the presence of moisture; the difference is proportional to the H2O content in the gas. In the future, for blast furnaces with a high hydrogen content, the method of determining CSR must be modified to take account of the influence of water vapor (formed in the reaction) on coke gasification.</div>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"67 11","pages":"648 - 653"},"PeriodicalIF":0.4000,"publicationDate":"2025-02-24","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/S1068364X24601069","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Previous articles in this series presented thermodynamic analysis of the reactions in the gasification of coke in the presence of H₂O and some parameters of this process in the laboratory. The sample porosity was estimated qualitatively (visually) and quantitatively by means of specialized image analysis software. The coke strength was assessed by the standard method of determining the postreactive strength CSR, introducing corrections as necessary if the sample size and mass were too small. In this final article, those results are discussed. The presence of moisture intensifies gasification, consequently decreasing its hot strength. For gasification by reaction with CO₂, CSR is significantly higher than in the presence of moisture; the difference is proportional to the H₂O content in the gas. In the future, for blast furnaces with a high hydrogen content, the method of determining CSR must be modified to take account of the influence of water vapor (formed in the reaction) on coke gasification.

Abstract Image

查看原文本刊更多论文

高氢高炉焦炭气化及焦后强度测定研究综述。水存在下焦炭气化后强度的变化

本系列的前几篇文章对焦炭在水存在下的气化反应进行了热力学分析，并在实验室对该过程的一些参数进行了研究。通过专门的图像分析软件对样品孔隙度进行定性（视觉）和定量估计。焦炭的强度是通过确定后反应强度CSR的标准方法来评估的，如果样本量和质量太小，必要时引入修正。在这最后一篇文章中，我们将讨论这些结果。水分的存在加剧了气化，从而降低了它的热强度。对于与CO2反应的气化，CSR明显高于存在水分的情况；这种差异与气体中H2O的含量成正比。今后，对于高含氢高炉，必须修改测定CSR的方法，以考虑（反应中形成的）水蒸气对焦炭气化的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Coke and Chemistry ENGINEERING, CHEMICAL-

CiteScore

0.70

自引率

50.00%

发文量

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.