IRMA - Flowsheet Model Examples of Application

Abstract

ULCOS is a large European research project that aims toidentify and develop technology that could enable a drasticreduction in CO₂ emissions from ore-based steel production.The IRonMAking flowsheeting model (IRMA) has madea vital contribution to one of the ULCOS subprojects, asIRMA models were used to evaluate the economics andCO₂ reduction potential of a large number of alternativeironmaking routes.
IRMA is a software tool that allows for the use ofthermodynamic data relevant to iron- and steelmaking in aflowsheeting environment. It was developed by Corus to serveas a dedicated, flexible and accessible tool to evaluate andcompare a wide range of ironmaking routes.
IRMA can be used to calculate consumption figures, productquality and the occurrence and significance of emissions.IRMA can do this for a wide range of operating conditionsand raw material compositions.
IRMA is currently being used for benchmarking, design andpilot plant development of the ISARNA process, which wasdeveloped in the context of the ULCOS project. ISARNA isone of the four process routes that have been selected forfurther development within ULCOS.