Investigation on ternary system tetrahydrofuran/ethanol/water with three azeotropes separation via the combination of reactive and extractive distillation
Investigation on ternary system tetrahydrofuran/ethanol/water with three azeotropes separation via the combination of reactive and extractive distillation
复制标题
反应精馏与萃取精馏相结合分离三共沸物的四氢呋喃/乙醇/水三元体系研究
DOI：
10.1016/j.jclepro.2020.123145
复制
发表时间：
2020-11-10
影响因子：
11.1
通讯作者：
Ren, Jingzheng
中科院分区：
文献类型：
--
作者：
Su, Yang;Yang, Ao;Ren, Jingzheng
In this work, a systematic method for conceptual design and multi-objective optimization of an energy efficient and sustainable reactive/extractive distillation (RED) process is proposed to separate a ternary wastewater mixture with multi-azeotrope tetrahydrofuran/ethanol/water. Conceptual design of the proposed scheme is carried out by the analysis of thermodynamic feasibility (e.g., residue curve maps and iso-volatility line). In the proposed process, the component of water in the ternary system is firstly removed by adding the reactant in a reactive distillation column and the remaining binary azeotropic mixture is then separated via ED. During the ED process, the best entrainer dimethyl sulfoxide could be determined via the comparison of iso- and uni-volatility. An improved multi-objective genetic algorithm is employed for optimizing the established process with some key decision variables (e.g., feed locations and distillate rate). The results illustrated that the economic and environmental benefits of the proposed RED process will be greatly improved. (c) 2020 Elsevier Ltd. All rights reserved.
