Cargando…

Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale

Sweeping gas membrane distillation (SGMD) is a useful option for dehydration of aqueous solvent solutions. This study investigated the technical viability and competitiveness of the use of SGMD to concentrate aqueous solutions of 1,3-dimethyl-2-imidazolidinone (DMI), a dipolar aprotic solvent. The c...

Descripción completa

Detalles Bibliográficos
Autores principales: Abejón, Ricardo, Saidani, Hafedh, Deratani, André, Richard, Christophe, Sánchez-Marcano, José
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950459/
https://www.ncbi.nlm.nih.gov/pubmed/31779174
http://dx.doi.org/10.3390/membranes9120158
_version_ 1783486076908732416
author Abejón, Ricardo
Saidani, Hafedh
Deratani, André
Richard, Christophe
Sánchez-Marcano, José
author_facet Abejón, Ricardo
Saidani, Hafedh
Deratani, André
Richard, Christophe
Sánchez-Marcano, José
author_sort Abejón, Ricardo
collection PubMed
description Sweeping gas membrane distillation (SGMD) is a useful option for dehydration of aqueous solvent solutions. This study investigated the technical viability and competitiveness of the use of SGMD to concentrate aqueous solutions of 1,3-dimethyl-2-imidazolidinone (DMI), a dipolar aprotic solvent. The concentration from 30% to 50% of aqueous DMI solutions was attained in a bench installation with Liqui-Cel SuperPhobic(®) hollow-fiber membranes. The selected membranes resulted in low vapor flux (below 0.15 kg/h·m(2)) but were also effective for minimization of DMI losses through the membranes, since these losses were maintained below 1% of the evaporated water flux. This fact implied that more than 99.2% of the DMI fed to the system was recovered in the produced concentrated solution. The influence of temperature and flowrate of the feed and sweep gas streams was analyzed to develop simple empirical models that represented the vapor permeation and DMI losses through the hollow-fiber membranes. The proposed models were successfully applied to the scaling-up of the process with a preliminary multi-objective optimization of the process based on the simultaneous minimization of the total membrane area, the heat requirement and the air consumption. Maximal feed temperature and air flowrate (and the corresponding high operation costs) were optimal conditions, but the excessive membrane area required implied an uncompetitive alternative for direct industrial application.
format Online
Article
Text
id pubmed-6950459
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-69504592020-01-16 Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale Abejón, Ricardo Saidani, Hafedh Deratani, André Richard, Christophe Sánchez-Marcano, José Membranes (Basel) Article Sweeping gas membrane distillation (SGMD) is a useful option for dehydration of aqueous solvent solutions. This study investigated the technical viability and competitiveness of the use of SGMD to concentrate aqueous solutions of 1,3-dimethyl-2-imidazolidinone (DMI), a dipolar aprotic solvent. The concentration from 30% to 50% of aqueous DMI solutions was attained in a bench installation with Liqui-Cel SuperPhobic(®) hollow-fiber membranes. The selected membranes resulted in low vapor flux (below 0.15 kg/h·m(2)) but were also effective for minimization of DMI losses through the membranes, since these losses were maintained below 1% of the evaporated water flux. This fact implied that more than 99.2% of the DMI fed to the system was recovered in the produced concentrated solution. The influence of temperature and flowrate of the feed and sweep gas streams was analyzed to develop simple empirical models that represented the vapor permeation and DMI losses through the hollow-fiber membranes. The proposed models were successfully applied to the scaling-up of the process with a preliminary multi-objective optimization of the process based on the simultaneous minimization of the total membrane area, the heat requirement and the air consumption. Maximal feed temperature and air flowrate (and the corresponding high operation costs) were optimal conditions, but the excessive membrane area required implied an uncompetitive alternative for direct industrial application. MDPI 2019-11-26 /pmc/articles/PMC6950459/ /pubmed/31779174 http://dx.doi.org/10.3390/membranes9120158 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Abejón, Ricardo
Saidani, Hafedh
Deratani, André
Richard, Christophe
Sánchez-Marcano, José
Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale
title Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale
title_full Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale
title_fullStr Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale
title_full_unstemmed Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale
title_short Concentration of 1,3-dimethyl-2-imidazolidinone in Aqueous Solutions by Sweeping Gas Membrane Distillation: From Bench to Industrial Scale
title_sort concentration of 1,3-dimethyl-2-imidazolidinone in aqueous solutions by sweeping gas membrane distillation: from bench to industrial scale
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950459/
https://www.ncbi.nlm.nih.gov/pubmed/31779174
http://dx.doi.org/10.3390/membranes9120158
work_keys_str_mv AT abejonricardo concentrationof13dimethyl2imidazolidinoneinaqueoussolutionsbysweepinggasmembranedistillationfrombenchtoindustrialscale
AT saidanihafedh concentrationof13dimethyl2imidazolidinoneinaqueoussolutionsbysweepinggasmembranedistillationfrombenchtoindustrialscale
AT derataniandre concentrationof13dimethyl2imidazolidinoneinaqueoussolutionsbysweepinggasmembranedistillationfrombenchtoindustrialscale
AT richardchristophe concentrationof13dimethyl2imidazolidinoneinaqueoussolutionsbysweepinggasmembranedistillationfrombenchtoindustrialscale
AT sanchezmarcanojose concentrationof13dimethyl2imidazolidinoneinaqueoussolutionsbysweepinggasmembranedistillationfrombenchtoindustrialscale