Abstract
Two sets of experimental data characterizing the chemical composition of coal ash, its flow temperature t c, and the CSR and CRI values of the coke from such coal are analyzed. The results indicate that the content of four oxides (SiO2, Fe2O3, CaO, and Na2O) may be used to predict t c and also CSR and CRI in mathematical models. Models of the form y = a(I 4) b , where y = t c, CSR, or CRI and I 4 = SiO2/(Fe2O3 + CaO + Na2O), adequately describe the experimental data within the range considered.
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