Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent

This study reexamined the possibility of improving the separation of binary azeotropic mixture containing tetrahydrofuran (THF) and ethanol from previous work (J Chem Technol Biotechnol 2015; 90: 1463–1472) that rely on the extractive distillation (ED) using ethylene glycol (EG) as solvent. Here, di...

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Main Authors: Kong, Zong Yang, Yang, Ao, Saptoro, Agus, Sunarso, Jaka
Format: Journal Article
Published: ScienceDirect 2022
Online Access:http://hdl.handle.net/20.500.11937/89961
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author Kong, Zong Yang
Yang, Ao
Saptoro, Agus
Sunarso, Jaka
author_facet Kong, Zong Yang
Yang, Ao
Saptoro, Agus
Sunarso, Jaka
author_sort Kong, Zong Yang
building Curtin Institutional Repository
collection Online Access
description This study reexamined the possibility of improving the separation of binary azeotropic mixture containing tetrahydrofuran (THF) and ethanol from previous work (J Chem Technol Biotechnol 2015; 90: 1463–1472) that rely on the extractive distillation (ED) using ethylene glycol (EG) as solvent. Here, dimethyl sulfoxide (DMSO) is proposed as an alternative solvent for the ED, and its feasibility is preliminary screened and compared against the usage of EG. The conceptual ED using DMSO is designed by manipulating all the design variables until the minimum product specifications (i.e. purity) are achieved. Then, the conceptual design is further optimised using particle swarm algorithm to obtain the ideal column configuration and the performance is compared against the ED using ethylene glycol (EG) and pressure swing distillation (PSD) (i.e. best process) from previous work based on economic and CO2 emission. Overall, the optimised ED using DMSO provides 36% and 37% lower economic and CO2 emission with respect to the ED using EG. In comparison to PSD (i.e. best process) from previous work, it provides 24% and 25% reduction in TAC and CO2 emission. Lastly, a control structure is developed for the proposed ED using DMSO that can effectively handle ± 10% throughput and ± 5% feed composition disturbances without the need of a composition controller as in the case of previous work.
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publishDate 2022
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spelling curtin-20.500.11937-899612023-02-01T08:26:01Z Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent Kong, Zong Yang Yang, Ao Saptoro, Agus Sunarso, Jaka This study reexamined the possibility of improving the separation of binary azeotropic mixture containing tetrahydrofuran (THF) and ethanol from previous work (J Chem Technol Biotechnol 2015; 90: 1463–1472) that rely on the extractive distillation (ED) using ethylene glycol (EG) as solvent. Here, dimethyl sulfoxide (DMSO) is proposed as an alternative solvent for the ED, and its feasibility is preliminary screened and compared against the usage of EG. The conceptual ED using DMSO is designed by manipulating all the design variables until the minimum product specifications (i.e. purity) are achieved. Then, the conceptual design is further optimised using particle swarm algorithm to obtain the ideal column configuration and the performance is compared against the ED using ethylene glycol (EG) and pressure swing distillation (PSD) (i.e. best process) from previous work based on economic and CO2 emission. Overall, the optimised ED using DMSO provides 36% and 37% lower economic and CO2 emission with respect to the ED using EG. In comparison to PSD (i.e. best process) from previous work, it provides 24% and 25% reduction in TAC and CO2 emission. Lastly, a control structure is developed for the proposed ED using DMSO that can effectively handle ± 10% throughput and ± 5% feed composition disturbances without the need of a composition controller as in the case of previous work. 2022 Journal Article http://hdl.handle.net/20.500.11937/89961 10.1016/j.dche.2022.100060 http://creativecommons.org/licenses/by-nc-nd/4.0/ ScienceDirect fulltext
spellingShingle Kong, Zong Yang
Yang, Ao
Saptoro, Agus
Sunarso, Jaka
Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
title Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
title_full Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
title_fullStr Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
title_full_unstemmed Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
title_short Revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: Design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
title_sort revisiting the binary azeotropic separation containing tetrahydrofuran and ethanol: design and control of extractive distillation using dimethyl sulfoxide as alternative solvent
url http://hdl.handle.net/20.500.11937/89961