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

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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.

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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.