Now a days, iron ore and coal composite pellets (composite pellets) have been in focus. During reduction of composite pellets, evolution of volatile matter takes place due to pyrolysis of coal. The volatile matter comprises mainly of a large number of hydrocarbons and small amounts of hydrogen and steam. Above 7000C (973 K), the hydrocarbons are quickly cracked into hydrogen and carbon. Hence, pyrolysis of coal generates reducing gases such as hydrogen and carbon monoxide. So, the reduction of iron oxide of composite pellets is due to reaction with these reducing gases. Potential reducing ability of volatile matter can be particularly effective at lower temperatures. The paper focuses on the effect of pyrolysis of coal on reduction of iron ore-coal composite pellets.
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