期刊
CHEMICAL ENGINEERING RESEARCH & DESIGN
卷 145, 期 -, 页码 48-52出版社
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.cherd.2019.03.001
关键词
Side-stream distillation; Energy-saving; BTX; Differential evolution; Simultaneous optimization
The liquid-only side-stream option is sometimes preferred to replace the vapor liquid interconnection in thermally coupled distillation to achieve similar energy efficiency but easier controlling. This work enumerates all possible liquid-only type distillation sequences for ternary systems before a fair comparison of them, through a case study of equimolar BTX (benzene toluene xylene) mixture. The optimization problem can be formulated as a mixed integer nonlinear programming (MINLP). A self-adapting dynamic differential evolution (SADDE) algorithm is used to address its difficulties from inherent nonlinearity and non convexity. This stochastic optimization algorithm, written in MATLAB, is linked to Aspen Plus to ensure calculation accuracy. Evaluation and comparison of ten configuration varieties verify the outperformance of liquid-only type configurations over simple distillation sequences with main equipment in common, saving both in energy and economic cost. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据