Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether

BACKGROUND The manufacturing process of ethyl tert-butyl ether (ETBE) involves the separation of ETBE, mixed C4 hydrocarbons and unreacted ethanol. Unfortunately, the unreacted ethanol forms azeotropic mixtures with ETBE that are difficult to separate by distillation. One of the alternative methods...

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Authors: Norkobilov, Adham, Gorri Cirella, Daniel|||0000-0002-5403-1545, Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
Format: article
Publication Date:2017
Country:España
Institution:Universidad de Cantabria (UC)
Repository:UCrea Repositorio Abierto de la Universidad de Cantabria
Language:English
OAI Identifier:oai:repositorio.unican.es:10902/13054
Online Access:http://hdl.handle.net/10902/13054
Access Level:Open access
Keyword:Membrane
Pervaporation
Distillation
Simulation
Purification
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spelling Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl etherNorkobilov, AdhamGorri Cirella, Daniel|||0000-0002-5403-1545Ortiz Uribe, Inmaculada|||0000-0002-3257-4821MembranePervaporationDistillationSimulationPurificationBACKGROUND The manufacturing process of ethyl tert-butyl ether (ETBE) involves the separation of ETBE, mixed C4 hydrocarbons and unreacted ethanol. Unfortunately, the unreacted ethanol forms azeotropic mixtures with ETBE that are difficult to separate by distillation. One of the alternative methods to overcome this limitation is the application of hybrid distillation–pervaporation processes with alcohol-selective membranes. RESULTS Simulation tasks were carried out with the process simulation software Aspen Plus and the results of alternative process flowsheets that result from the relative location of the separation technologies (for a target product purity) have been compared on the basis of the required membrane area and energy consumption. Thus, in the case study analyzed seven pervaporation modules located on a sidestream withdrawal, with a total membrane area of 210 m2, are required to obtain 6420 kg h−1 of ETBE with a purity of 95.2 wt%. The retentate stream is returned to the column while the permeate stream, with a high ethanol content, is recycled back to feed the reactors CONCLUSION Incorporating pervaporation modules in the process flowsheet for production of ETBE allows unloading of the main separation unit (debutanizer column), thereby reducing energy consumption and operating costs and increasing throughput.Financial support from the Spanish Ministry of Science under the projects CTM2013-44081-R (MINECO, Spain-FEDER 2014–2020), CTQ2015-66078-R and CTQ2016-75158-R is gratefully acknowledged. Adham Norkobilov also thanks the SILKROUTE Project for a PhD scholarship funded by the European Commission through the Erasmus Mundus Action 2 Programme.Wiley-BlackwellUniversidad de Cantabria20172017-05-09journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/13054Journal of Chemical Technology and Biotechnology, 2017, 92(6), 1167-1177reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/130542026-06-02T12:39:31Z
dc.title.none.fl_str_mv Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
title Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
spellingShingle Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
Norkobilov, Adham
Membrane
Pervaporation
Distillation
Simulation
Purification
title_short Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
title_full Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
title_fullStr Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
title_full_unstemmed Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
title_sort Process flowsheet analysis of pervaporation-based hybrid processes in the production of ethyl tert-butyl ether
dc.creator.none.fl_str_mv Norkobilov, Adham
Gorri Cirella, Daniel|||0000-0002-5403-1545
Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
author Norkobilov, Adham
author_facet Norkobilov, Adham
Gorri Cirella, Daniel|||0000-0002-5403-1545
Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
author_role author
author2 Gorri Cirella, Daniel|||0000-0002-5403-1545
Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
author2_role author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Membrane
Pervaporation
Distillation
Simulation
Purification
topic Membrane
Pervaporation
Distillation
Simulation
Purification
description BACKGROUND The manufacturing process of ethyl tert-butyl ether (ETBE) involves the separation of ETBE, mixed C4 hydrocarbons and unreacted ethanol. Unfortunately, the unreacted ethanol forms azeotropic mixtures with ETBE that are difficult to separate by distillation. One of the alternative methods to overcome this limitation is the application of hybrid distillation–pervaporation processes with alcohol-selective membranes. RESULTS Simulation tasks were carried out with the process simulation software Aspen Plus and the results of alternative process flowsheets that result from the relative location of the separation technologies (for a target product purity) have been compared on the basis of the required membrane area and energy consumption. Thus, in the case study analyzed seven pervaporation modules located on a sidestream withdrawal, with a total membrane area of 210 m2, are required to obtain 6420 kg h−1 of ETBE with a purity of 95.2 wt%. The retentate stream is returned to the column while the permeate stream, with a high ethanol content, is recycled back to feed the reactors CONCLUSION Incorporating pervaporation modules in the process flowsheet for production of ETBE allows unloading of the main separation unit (debutanizer column), thereby reducing energy consumption and operating costs and increasing throughput.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-05-09
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/13054
url http://hdl.handle.net/10902/13054
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv Journal of Chemical Technology and Biotechnology, 2017, 92(6), 1167-1177
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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