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Thermodynamic optimization of atmospheric distillation unit

Lookup NU author(s): Funmi Osuolale, Dr Jie ZhangORCiD



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


This paper presents a methodology for optimising the exergy efficiency of atmospheric distillation unit without trading off the products qualities and process throughput. The presented method incorporates the second law of thermodynamics in data driven models. Bootstrap aggregated neural networks (BANN) are used for enhanced model accuracy and reliability. The standard error of the individual neural network predictions is taken as the indication of model prediction reliability and is incorporated in the optimization objective function. The economic analysis of the recoverable energy (sum of internal and external exergy losses) reveals the energy saving potential of the proposed method, which will aid the design and operation of energy efficient atmospheric distillation columns.

Publication metadata

Author(s): Osuolale FN, Zhang J

Publication type: Article

Publication status: Published

Journal: Computers & Chemical Engineering

Year: 2017

Volume: 103

Pages: 201-209

Print publication date: 04/08/2017

Online publication date: 31/03/2017

Acceptance date: 29/03/2017

Date deposited: 30/03/2017

ISSN (print): 0098-1354

ISSN (electronic): 1873-4375

Publisher: Elsevier


DOI: 10.1016/j.compchemeng.2017.03.024


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