Dry-charge carbonization and coke quality

Significantly, the change in the carbonization conditions of the dry charge has no effect on the strength of the coke. A table gives data characterizing the physico-chemical properties of the coke, showing that the coke from the dry charge is denser and has a lower reaction capacity than the coke from the moist charge. Thus the studies showed that thorough drying of a coal charge (to 1% moisture) before carbonization significantly improves the quality of the coke and reduces the consumption of heat on carbonization, and that the increase in bulk density and the reduction of the duration of the carbonization period increase the productivity of the coke batteries by 40 to 42%.