Hydrodynamic and tray efficiency behavior in parastillation column

Brazilian Journal of Chemical Engineering

J. Belincanta¹  T. M. Kakuta Ravagnani¹  J. A. F. Pereira¹ 

[1] ,State University of Campinas School of Chemical Engineering Department of Chemical Systems EngineeringCampinas São Paulo ,Brazil

关键词: Parastillation;    Hydrodynamics;    Murphree efficiency;   

DOI  :  10.1590/S0104-66322006000100015

来源: SciELO

【 摘 要 】

This work presents aspects of the parastillation process, which employs a unique distillation column where the vapor stream is divided into two equal parts and the falling liquid is alternately in contact with both vapor parts on a stage-by-stage basis. A laboratory-scale apparatus was used to study the parastillation column. Experiments were carried out under total and partial reflux conditions using an ethanol-water system. Experiments were conducted to analyze the effects of vapor flow rate and initial ethanol concentration in the reboiler on the hydrodynamic conditions. Limiting operating conditions were defined. Murphree separation efficiencies were calculated and discussed.

【 授权许可】

CC BY   
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