Authors introduce an ultrahigh-temperature (i.e., 2500–3000 °C) continuous fluidized bed furnace, in which the key operating variable is specific electrical resistance of the bed. A correlation has been established to predict the specific electrical resistance for the natural graphite-based precursors. Fluid dynamics models have been validated with the data from a fully functional prototype reactor. Data collected demonstrated that the difference between the calculated and measured values of specific resistance is approximately 25%; due to chaotic nature of electrothermal fluidized bed processes, this discrepancy was deemed acceptable. Optimizations proposed allow producing natural graphite-based end product with the purity level of 99.98 + wt. %C for battery markets.
Ultrahigh-Temperature Continuous Reactors Based on Electrothermal Fluidized Bed Concept
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received December 19, 2014; final manuscript received August 1, 2015; published online December 8, 2015. Assoc. Editor: E. E. Michaelides. The United States Government retains, and by accepting the article for publication, the publisher acknowledges that the United States Government retains, a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for United States Government purposes.
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Fedorov, S. S., Singh Rohatgi, U., Barsukov, I. V., Gubynskyi, M. V., Barsukov, M. G., Wells, B. S., Livitan, M. V., and Gogotsi, O. G. (December 8, 2015). "Ultrahigh-Temperature Continuous Reactors Based on Electrothermal Fluidized Bed Concept." ASME. J. Fluids Eng. April 2016; 138(4): 044502. https://doi.org/10.1115/1.4031689
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