Metallurgical Coal - Steel 360 Magazine Blog
12. Gray King (GK) Coke type: The value of GK is to be G-5 minimum in metallurgical coal. For soft coking coal the limit of GK value is G min. 13. Mean Maximum Reflectance (MMR): The value of MMR in coking coal varies in the range of 0.85-1.35%. Soft coking coal has a lower MMR while hard coking coal has higher MMR. 14.
Selection of Coal for inclusion in Coal Blend in Coke ...
Coal blend design for coke size. The as-formed size of the coke is influenced by the amount of inert components present in the coal blend. As the inert content decreases, the size of coke decreases. Thus, the coal type influences the coke size. The coke size is also highly dependent on operating variables.
Difference Between Coal and Coke
May 14, 2012· • Coke is produced from bituminous coal. • Coal burns with no smoke whereas coal burns with smoke. Therefore, coke is better as a fuel than bituminous coal itself. • Therefore, coke is used as a substitute for coal in domestic environments. • Water content in coke goes t zero at the end of the coking process, but coal .