Abstract
The preservation of metallurgical coal and coke cost reduction are gaining much importance in iron and steel industry. The effort is being made worldwide to increase the use of inferior grade coking coal/non-coking coal in coke making. The objective of this study was to maximize the use of non-coking coal in the coal blend without deteriorating the coke quality in non-recovery coke oven. The selection criterion of coal/coal blend was based on a coefficient, named as composite coking potential model. The study confirms the existence of a relationship between the composite coking potential and the hot strength of coke. The study reveals that upto 35% non-coking coal in coal blend is possible to produce desired quality of coke with coke CSR ≥ 65.
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