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Paddle Mixer-Extrusion Reactor For Torrefaction And Pyrolysis, Stas Zinchik
Paddle Mixer-Extrusion Reactor For Torrefaction And Pyrolysis, Stas Zinchik
Dissertations, Master's Theses and Master's Reports
This work is focused on the fundamental understanding and the development of paddle mixer reactors (or modified screw augers). This work will contribute to the effort of the thermal conversion of biomass and wastes. We developed and studied two paddle systems (i) 25-mm lab-scale (up to 1 kg/hr) and (ii) 101-mm pilot-scale (up to 100 kg/hr). Thermal behavior of the two systems was studied and it was estimated that the lab-scale system has a high heating rate of up to 530 °C/s. Residence times were thoroughly measured and were determined as a function of rotation frequency and volume fraction. We …