Effect of HYL Process Parameters on the Quality of Iron Ore Reduction

Document Type : Original Article

Authors

1 Suez Steel Company, Add: Egypt, Suez, Attaka, Adabeyah road

2 Department of Metallurgical and Materials Engineering, Suez University, Suez 43512

3 Department of Metallurgical and Materials Engineering, Suez University, Suez 43512 Department of Mechanical Engineering,The British University in Egypt, El-Sherouk City, 11837 Cairo, Egypt

Abstract

In this work the effect of a number of HYL process parameters on direct reduced iron (DRI) quality, during a real process taking place at Suez Steel Company have been studied. These parameters are gas temperature at reactor inlet and at heater outlet, process gas flow rate, oxygen flow rate at partial combustion zone, reducing gases ratio, humidity percent in process gas, cooling gas flow rate and natural gas make-up for cooling gas. By changing these parameters, then by calculating the DRI quality (metallization and carbon content percentages ) after the residence time , I has been found that the metallization degree  increases with the increase of gas temperature at reactor inlet and at heater outlet , process gas flow, oxygen flow at partial combustion zone, reducing gases ratio, humidity percent in process gas. Also increasing of cooling gas flow rate and natural gas make-up for cooling gas has caused increase a carbon content.

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