Michael E. Harasek1, Christian Jordan1, Georg Aichinger2, Franz Winter1, Christoph Feilmayr3, Stefan Schuster3, and Christian Maier1. (1) Institute of Chemical Engineering, Vienna University of Technology, Getreidemarkt 9/166, Vienna, A-1060, Austria, (2) Siemens VAI GmbH & Co, Turmstraße 44, Linz, A-4031, Austria, (3) voestalpine Stahl GmbH, VOEST-ALPINE-Straße 3, Postfach 3, Linz, A-4031, Austria
The injection of plastic particles into the blast furnace raceway through tuyere lances was simulated with Computational Fluid Dynamics (CFD). The high speed conversion of plastic particles at high temperatures was investigated. Particle data obtained from ultimate and optical analysis combined with thermoanalytical data were used to accomplish a discrete phase model. Plug-flow reactor simulations on a CFD basis were performed to verify this model. The conversion of the particles, resulting temperatures as well as the formation of reducing species were studied.