Hot DRI/HBI Charging to EAF

In recent years the majority of captive DRI production units installed have been focused on charging of hot DRI/HBI to the EAF at temperatures in the range of 600 °C. The hot DRI charging practice utilizes the same basic reduction units as are used in cold DRI melting. However, the cooler unit at the bottom of the reactor allows material discharge at temperatures in excess of 600 °C. The Hot DRI can be transferred to the EAF using one of 4 methods: Pneumatic transportation, Electro-mechanical conveyor transport, Gravity feed from an elevated reactor and Transport in insulated bottles using mobile equipment. In addition to energy savings, hot charging increases productivity, improves slag foaming, and increases carbon content in the charge.

This technology is only applicable to plants with on-site production of DRI. 

Development Status Products

Hot DRI/HBI Charging to EAFCosts & Benefits

Parent Process: Electric Arc Furnace
Energy Savings Potential

Charging hot DRI at temperatures up to 600 °C rather than cold DRI results in a melting energy reduction of 150 kWh/t-steel (>0.5 GJ/ton).

CO2 Emission Reduction Potential

Environmental emissions are lower due to energy savings.


Hot DRI/HBI Charging to EAF Publications

The State–of-the-Art Clean Technologies (SOACT) for Steelmaking Handbook


The State–of-the-Art Clean Technologies (SOACT) for Steelmaking Handbook is developed as part of the Asia-Pacific Partnership on Clean Development and Climate program and seeks to catalog the best available technologies and practices to save energy and reduce environmental impacts in the steel industry. Its purpose is to share information about commercialized or emerging technologies and practices that are currently available to increase energy efficiency and environmental performance. 

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