Description:

The manufacture of steel by electric arc furnaces (EAF) is continuing to increase in usage in the United States with current production estimated to be over 63 million tons per year. The reduction of emissions from steel producers has been slow for two main reasons: the need to maintain or increase current production levels and the lack of understanding and control of the steel-making process.

The EAF holds a three-phase system of liquid (molten steel), slag (metal oxides), and gas with both mass and heat transfer taking place amongst the three. The furnace operations, or controls, include carbon injection, oxygen lancing, burner operation, and air infiltration. The controls are used to produce the appropriate grade of liquid steel at a requested temperature.

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Final Progress Report

2000 Progress Report

Record Details:

Record Type:PROJECT( ABSTRACT )

Start Date:10/01/1998

Completion Date:10/01/2001

Record ID: 53036

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Related Organizations:

Role :OWNER

Organization Name :UNIVERSITY OF COLORADO - BOULDER

Mailing Address :Campus Box 17

Citation :Boulder

State :CO

Zip Code :80309

Project Information:

Approach :We propose to develop a dynamic model of the electric arc furnace consisting of melting, equilibrium chemistry, and material balance sub-models. The EAF model will include all of the furnace operations involved in an industrial furnace. Preliminary investigations into the control of the furnace to minimize carbon monoxide emissions have shown that the system is extremely sensitive to carbon injection and burner oxygen controls. These results show great promise for the improvement of furnace performance, which includes environmental impact and energy consumption.

Cost :$109,305.00

Research Component :Pollution Prevention/Sustainable Development

Project IDs:

ID Code :R826736

Project type :EPA Grant