Simulation of Heterogeneous Azeotropic Distillation Process with a Non-equilibrium Stage Model
نویسندگان
چکیده
A rate-based simulation method is developed with the correlation for mass transfer rate, which was obtained in our experiments of the homogeneous and heterogeneous ternary distillation with a sieve tray column. The simulation method is applied to the process of ethanol dehydration with benzene, which consists of a dehydrationand an entrainer recovery column. In the simulation study, the effect of tray specifications, reflux ratio, locations of feed and recycle streams, and recycle flow rate on separation performance of the process are investigated. The simulation results show that the top vapor concentration closer to the heterogeneous azeotrope of the system gives a more efficient separation.
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