Maximum thermodynamic efficiency problem in batch distillation

Brazilian Journal of Chemical Engineering

J. C. Zavala-loría²  A. Ruiz-marín²  C. Coronado-velasco¹ 

[1] ,Universidad Autónoma del Carmen Facultad de Química Dependencia Académica de Ciencias Químicas y PetroleraCiudad del Carmen Campeche ,México

关键词: Batch distillation;    Thermodynamic Efficiency;    Optimal Control Problem;   

DOI  :  10.1590/S0104-66322011000200018

来源: SciELO

【 摘 要 】

A dynamic batch distillation study of the non-ideal mixture Ethanol-Water is presented. The objective of the study was to calculate an average thermodynamic efficiency of the process under an optimal constant reflux policy and the objective function includes a given production time in order to obtain the desired product quality (measured as the average mole fraction of the accumulated product). An expression for computing the thermodynamic efficiency is presented. The simulation of the column uses a mathematical model considering the complete dynamics of the operation and the problem of optimal control resulting in a non-linear programming problem. A dynamic optimization technique based on a SQP method was used to solve the problem. The average thermodynamic efficiency for the separation process under the conditions presented was 37.95%.

【 授权许可】

CC BY   
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