Improvement of bulk density of coal charge by using surface active reagent

Coal charge bulk density is an important parameter for throughput and coke quality improvement. Surface active agents are used to improve the cohesions between the coal and water particles to improve the coal charge bulk density. Trial in commercial non-recovery coke oven shows that there is an improvement in the bulk density with addition of surfactant. Also, there is improvement in properties like coke hot strength after reaction due to compactness of the coal charge.