APPLICATION OF CFD IN FLUIDIZED BED REACTOR FOR PROPANE DEHYDROGENATION

Abstract

Abstract: A three-dimensional multi-scale CFD model was developed for a propane dehydrogenation reactor in a pilot-scale circulating fluidized bed device. By using the CFD model，sensitivity studies on operation conditions were conducted. Findings indicated that the 3D multi-scale CFD model could describe precisely the reaction paths occuring in the propane dehydrogenation reactor. Besides，the optimum operation conditions for the propane dehydrogenation was obtained： reaction temperature of 600 ℃， GHSV of 2 350 h-1， catalyst inventory of 0.8 kg， and the mean particle diameter is 70 μm. Under the optimal conditions，the conversion of propane is 43% and the selectivity of propylene is 85%，the yield of propylene reaches up to 37%. CFD is proved to be capable of applications in the simulation， design, scale-up and optimizations of fluidized-bed reactors for propane dehydrogenation process.

Key words: propane, dehydrogenation, CFD, circulating fluidized bed, reactor

Du Yupeng Sun Lejing Fang Deren Ren Wanzhong. APPLICATION OF CFD IN FLUIDIZED BED REACTOR FOR PROPANE DEHYDROGENATION[J]. , 2018, 49(4): 58-63.

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