Modeling of a circulating fluidized bed for ammoxidation of propane to acrylonitrile

The catalytic ammoxidation of propane over V-Sb-Al catalyst in a circulatin g fluidized bed (CFB) is investigated, A mathematical model for the system based on combining the kinetics of reaction and the hydrodynamics of the be d is used to simulate the reactor performance. Sensitivity analysis of the effect of operating conditions shows that the acrylonitrile yield increases as reaction temperature increases or as propane feed mole fraction decreas es. The acrylonitrile yield decreases as solid circulation rate, and gas su perficial velocity increase. (C) 2000 Elsevier Science S.A. All rights rese rved.