Application-based catalytic methanation of steelworks gases under dynamic operating conditions

This paper presents a real and application-based scenario for dynamically driven catalytic methanation unit, using off-gases from an integrated steel mill as input. Several parameters are subject to dynamic changes during the standard production of steel, such available amount composition accumulating process gases, temperature operating pressure well their periodicity. In addition, hydrogen can vary depending on fluctuating renewable energy installed electrolyzer. Analysis routes in steelmaking revealed that among many theoretically possible modes driving which defined literature, there is only one realistic scenario. The definition this case supported by experiments performed with three-stage setup lab-scale. experimental campaign covered cases flow rates, adjusting blast furnace converter gases based high variations availability hydrogen. It was achieve very stable product gas compositions, even though load input power up 64% range 120 min were executed. did not result any additional catalyst deactivation through whole campaign.