Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol

Distillation is the most widely used separation technique in the process industry. Its main disadvantage is the high consumption of thermal energy: the heat requirements of the distillation columns often represent most part of the total energy cost of the plant, appropriate integration of the distil...

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Autores principales:	Mansour M. Emtir, Ayman A. Elbabour
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/514047d3d56a4de38158386929d595af
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spelling	oai:doaj.org-article:514047d3d56a4de38158386929d595af2021-11-15T21:47:04ZEnergy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol10.3303/CET21881902283-9216https://doaj.org/article/514047d3d56a4de38158386929d595af2021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11983https://doaj.org/toc/2283-9216Distillation is the most widely used separation technique in the process industry. Its main disadvantage is the high consumption of thermal energy: the heat requirements of the distillation columns often represent most part of the total energy cost of the plant, appropriate integration of the distillation columns with the overall process often results in a significant reduction of the energy consumption in many cases. In this work the concept of the integration has been applied by two integrated design approaches:Heat-integrated design; where the distillation system of the process will be heat-integrated with the background process (i.e. integration between the distillation columns and the heat exchangers). Reactive distillation design; where the reaction and distillation will be accomplished in the same unit. The process of dimethyl ether (DME) synthesis by the catalytic dehydration of methanol has been considered as a case study. Heat-integrated design of DME process showed a significant total annual cost saving of 41 % compared to the conventional process, and the reactive DME distillation column design showed highest saving in total annual cost (TAC) by 81 %. In addition to the cost saving of the two proposed designs, also the flue gas emissions have been reduced using process integration methodology, where 51 % of the total emissions has been reduced by the heat-integrated design and 86 % by the reactive distillation column design.Mansour M. EmtirAyman A. ElbabourAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Mansour M. Emtir Ayman A. Elbabour Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol
description	Distillation is the most widely used separation technique in the process industry. Its main disadvantage is the high consumption of thermal energy: the heat requirements of the distillation columns often represent most part of the total energy cost of the plant, appropriate integration of the distillation columns with the overall process often results in a significant reduction of the energy consumption in many cases. In this work the concept of the integration has been applied by two integrated design approaches:Heat-integrated design; where the distillation system of the process will be heat-integrated with the background process (i.e. integration between the distillation columns and the heat exchangers). Reactive distillation design; where the reaction and distillation will be accomplished in the same unit. The process of dimethyl ether (DME) synthesis by the catalytic dehydration of methanol has been considered as a case study. Heat-integrated design of DME process showed a significant total annual cost saving of 41 % compared to the conventional process, and the reactive DME distillation column design showed highest saving in total annual cost (TAC) by 81 %. In addition to the cost saving of the two proposed designs, also the flue gas emissions have been reduced using process integration methodology, where 51 % of the total emissions has been reduced by the heat-integrated design and 86 % by the reactive distillation column design.
format	article
author	Mansour M. Emtir Ayman A. Elbabour
author_facet	Mansour M. Emtir Ayman A. Elbabour
author_sort	Mansour M. Emtir
title	Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol
title_short	Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol
title_full	Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol
title_fullStr	Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol
title_full_unstemmed	Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol
title_sort	energy integration and reactive distillation for dimethyl ether synthesis via catalytic dehydration of methanol
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/514047d3d56a4de38158386929d595af
work_keys_str_mv	AT mansourmemtir energyintegrationandreactivedistillationfordimethylethersynthesisviacatalyticdehydrationofmethanol AT aymanaelbabour energyintegrationandreactivedistillationfordimethylethersynthesisviacatalyticdehydrationofmethanol
_version_	1718426843004010496

Energy Integration and Reactive Distillation for Dimethyl Ether Synthesis via Catalytic Dehydration of Methanol

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