Inert Addition in Coal Blend and Its Effect on Coke Quality

Abstract Coke is the most important raw material fed into the blast furnace, in terms of its effect on blast furnace operation and hot metal quality. During production of coke, coke fines are generated, which is used in sinter plant. In steel industry wherever excess of coke fines are generated, it becomes problematic to dispose these coke fines. Coke making process has passed through various stages of development over a period of time. Various types of catalyst, non-coking coals and chemical addition have been attempted in coal blend to improve the coke quality and to reduce the cost of coke. A study has been conducted where coke fines has been used in coal blend. This paper presents the salient points of the investigation on the effect of coke fines addition on M10 and M25 value of coke.