Quality assessment of metallurgical coke: Fast determination of reactivity and postreactive strength

The quality of metallurgical coke may be assessed on the basis of technical analysis, the granulometric composition, mechanical strength, reactivity, structural strength, density and porosity, postreactive strength, and other characteristics. Analysis shows that the strength characteristics of coke...

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Bibliographic Details
Published inCoke and chemistry (New York, N.Y.) Vol. 58; no. 6; pp. 200 - 203
Main Authors Berkutov, N. A., Rozhnev, A. V., Koshkarov, D. A., Stepanov, Yu. V.
Format Journal Article
LanguageEnglish
Published New York Allerton Press 01.06.2015
Subjects
Chemistry
Chemistry and Materials Science
Coal and Coke
Industrial Chemistry/Chemical Engineering
postreactive strength
coke quality
mechanical strength
quality correlations
express methods
quality assessment
coke reactivity
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Summary:The quality of metallurgical coke may be assessed on the basis of technical analysis, the granulometric composition, mechanical strength, reactivity, structural strength, density and porosity, postreactive strength, and other characteristics. Analysis shows that the strength characteristics of coke in the cold, heated, and subsequently cooled states are closely correlated. Methodological and technological deficiencies of the determination of CRI and CSR are outlined. An express method of determining coke quality is developed. The postreactive strength determined by the method proposed at the central laboratory for coke production at OAO EVRAZ NTMK is shown to be closely correlated with the reactivity ( CRI ) and postreactive strength ( CSR ) determined in accordance with the ASTM standard. Accordingly, by the proposed method, the reactivity of the coke and its strength after reaction with carbon dioxide may be predicted with high probability.
ISSN:1068-364X
1934-8398
DOI:10.3103/S1068364X15060022