Optimization of processing conditions leading to dangerous emissions in steelmaking plants

Abstract

Sintering is a process for ironmaking operations; it represents one of the main sources of production emissions of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzo-furans, NOx and SOx. In the present study, the operating conditions through which a reduction of dangerous emissions can be achieved are defined through experimental and numerical analysis. Through such analysis, a broad range of processing parameters affecting the development of PCDD/Fs in the sintering process has been evaluated. The first aim was the possible reduction of dangerous emissions through numerical and experimental analyses allowing the definition of the optimal conditions for the minimization of pollutants. Blast furnace represents the dominant hot metal making production process worldwide and one of the main Modern research in the field focuses on the increase in plant productivity through energy saving and on the greenhouse emissions reduction compatible with legal limits. Productivity is mainly governed by relevant input parameters such materials rates, materials properties and operating conditions. All the dominant input parameters and their variation have been analyzed in the present study and they have been optimized in order to increase the plant productivity and reduce the greenhouse emissions.