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A method is proposed for determining the technological value of coal concentrates on the basis of industrial coking data. The technological value serves as a numerical score characterizing the influence of a concentrate from a specific supplier on coke quality (that is, the cold strength M25 and...
On the basis of a mathematical model, a linear relation is established between the coke characteristics determined in drum tests. Specifically, the relation between the abradability M10 and crushability M25 is as follows: M10 = 100 – KM25. Analytical methods show that K = 1.00–1.11. As an...
Existing criteria for optimal coke quality used in practice in batch formulation are reviewed. The chemical and petrographic parameters of the optimal batches are presented for various Russian coke plants and for the production of high-quality coke. It is found that the economic indices of...
Coking of batch with alternative components is investigated in trials.
Coke is a porous carbonaceous material, and nanopores have an impact on its properties. The determination of nanopore structure of coke by low temperature N2 adsorption method was studied. The degassing time of the experimental coke, the particle size conditions of the sample and the method of...
The vacuum rectification of naphthalene at Magnitogorsk Iron and Steel Works (MMK), using the system developed by Zavkom (Tambov) is considered. The rectification system went into operation in December 2020. The naphthalene extract obtained by this means is of grade A and type II according to...
Technological factors affecting the quality of coal tar are considered. Recommendations are made to improve tar quality. The influence of technological factors on the tar’s content of quinoline-insoluble components is analyzed.
Operational experience with a Karbotest laboratory coking system at Altai-Koks is presented. The operational benefits and defects of the Karbotest system are noted.
Optimal recirculation in radiant and convective furnaces is chosen based on numerical simulations and optimal system organization principles. In optimization, the focus is on multifunctional solutions that not only increase the energy and resource conservation and decrease the environmental...
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