Predicting the Quality of OAO Altai-Koks Coke by Laboratory and Box Coking 2. Box Coking

Abstract

By box coking of experimental batch that simulates the industrial batch at OAO Altai-Koks, a model is formulated for predicting the quality (M₂₅, M₁₀) of laboratory coke on the basis of the coking indices \(C{{I}^{{{{V}_{{\text{o}}}}}}}\) and CI. The relation derived between the quality (M₂₅, M₁₀) of the box coke and the quality (M₂₅, M₁₀) of industrial coke produced by wet and dry quenching permits prediction of M₂₅ and M₁₀ for the industrial coke on the basis of predicted or experimental M₂₅ and M₁₀ values for the box coke. By that means, ongoing determination of the M₂₅ and M₁₀ values of industrial coke produced with wet and dry quenching is possible in the following circumstances:—in correcting production batch on the basis of the coal components available in the store and other nearby coal resources;—in correcting production batch by means of outside concentrates not currently available at the plant;—in analysis of the reasons for quality changes of the coke at any moment;—in developing promising batches as the market for coking coal changes.