The bituminous coal is heated to 950-1050 ° C under the condition of air isolation, and is finally made into coke after drying, pyrolysis, melting, bonding, solidification and shrinkage. This process is called high temperature coking (high temperature retorting). Coke obtained from high temperature coking is used for blast furnace smelting, casting and gasification. The recovered and purified coke oven gas produced during the coking process is both a high calorific value fuel and an important organic synthesis industrial raw material.
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