Investigation of Alternative Reducing Agent Conversion in the Raceway Cavity of Blast Furnaces by Numerical Simulation
(Room 404)
16 May 16
11:00 AM
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11:30 AM
Tracks:
BF Modeling, Blast Furnace Operating Improvements
In order to evaluate the use of alternative reducing agents in blast furnaces, a CFD model with the functionality to describe the processes in the vicinity of the tuyere opening was developed. The conversion behavior of various types of injectants — including processed waste plastics, liquid hydrocarbons, pulverized coal and natural gas — is addressed, also considering the thermochemical conversion of metallurgical coke by oxidation and gasification reactions. The thoroughly validated multiphase modeling tool is applied to various sets of blast furnace operating parameters (e.g., type of reducing agents, injection rates) as well as geometric setups. The results contribute to a better understanding of the processes, supporting the efforts to further decrease emissions and consumption of primary resources.