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Increasing the strength of metallurgical coke by adding modified petroleum coke to the coking batch
Coke and Chemistry, 2009Box-coking data show the possibility of increasing the yield and strength of metallurgical coke by introducing a coking additive in the batch. Specifically, this additive is a product of slow coking of heavy petroleum residues, characterized by excellent thermoplastic properties: clinkering properties and plastic temperature range. A Russian patent has
M. I. Stukov +7 more
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Vitrinite content and coke strength
Fuel, 1971Most previously reported work suggests that the optimum content of the reactive macerals (vitrinite and exinite) in a coal or coal blend is in excess of 70%. Studies of blends with New Zealand coals and coals from the Southern Coalfield of New South Wales show that above 50 % vitrinite there is little improvement in coke hardness and a decline in coke ...
A.C. Cook, G.E. Edwards
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The texture and strength of metallurgical coke
Journal of Materials Science, 1989This study aimed to investigate the relationship between the tensile strength of metallurgical coke and both the textural composition of the carbon matrix and the porous structure of the coke, and further to assess the use of these structural features as bases of methods of coke strength prediction.
Angela Moreland +2 more
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Simulation of the strength of metallurgical coke
Solid Fuel Chemistry, 2012An algorithm is given for the optimization of the strength characteristics of metallurgical coke with the variation of charge mixture composition. Various versions of the computer simulation of the strength of coke are analyzed with the use of a particular example.
A. M. Gyul’maliev +2 more
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An alternative approach to coke strength prediction
Fuel, 1989Abstract Using the diametral compression method, tensile strengths were determined for 44 cokes, produced in a small pilot oven, from two- and three-component coal blends based on six coals varying in International Classification from 332 to 733. The textural composition of cokes from single-coal charges were determined by point-counting during the ...
Douglas Hays +2 more
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Effects of additions of petroleum coke in coals upon strengths of resultant cokes
Fuel, 1981Abstract Coals of NCB rank 301, 401 and 502 were co-carbonized with pitch-coke breeze pre-carbonized to temperatures between 900–1200 K, in the ratio 9:1. The objective was to provide fundamental information concerning the effect of inert components upon strength of metallurgical coke; these inert components occur naturally in coals and may also be ...
Maggi Forrest, Harry Marsh
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Petrographic aspects of the hot strength of coke
Coke and Chemistry, 2010The strength CSR of metallurgical coke after high-temperature reaction with CO2 is determined by the depth of reaction and depends on the petrographic composition of the initial coal, the degree of metamorphic development, and the content of catalytically active ash components.
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The effect of alkali on the reaction kinetics and strength of blast furnace coke
Fuel, 2020Anrin Bhattacharyya +2 more
exaly