Title

USING A BLAST FURNACE MODEL FOR THE SELECTION OF PCI COALS

USING A BLAST FURNACE MODEL FOR THE SELECTION OF PCI COALS

Authorship

BENNETT, P.

BENNETT, P.

I am this author

DOI

10.5151/2594-357x-34Red-1157-1166

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Abstract

Pulverized coal injection has assisted the steel industry to lower operating costs, extend coke oven life and lower greenhouse emissions. As the understanding of the impact of quality of the injected coal has increased, there has been a shift from high volatile thermal coals to low volatile semi-anthracites. A heat and mass model was used to investigate the impact of the injected coal properties on coke replacement ratio and operating costs under two sets of operating conditions corresponding to European and Japanese practices. The model was also used to investigate the impact of the injected coal ash content on the likely operating costs of a blast furnace.

Pulverized coal injection has assisted the steel industry to lower operating costs, extend coke oven life and lower greenhouse emissions. As the understanding of the impact of quality of the injected coal has increased, there has been a shift from high volatile thermal coals to low volatile semi-anthracites. A heat and mass model was used to investigate the impact of the injected coal properties on coke replacement ratio and operating costs under two sets of operating conditions corresponding to European and Japanese practices. The model was also used to investigate the impact of the injected coal ash content on the likely operating costs of a blast furnace.

Keywords

pulverized coal injection, blast furnace model, coke replacement ratio, coal properties, operating costs

pulverized coal injection, blast furnace model, coke replacement ratio, coal properties, operating costs