The use of oxidized coal in coking batch increases the analytical moisture content and packing density; impairs the plasticity and ductility; reduces the carbon and hydrogen content; increases the oxygen content; reduces the gross coke yield and the yield of tar, benzene, and unsaturated compounds; increases the yield of carbon dioxide, pyrogenetic tar, and inverse coke-oven gas; and impairs coke quality. Adding oxidized coal in the initial stage of oxidation (?t < 6°C) to the batch does not lead to significant change in coke quality.
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