Pervaporation recovery of [AMIM]Cl during wood dissolution; effect of [AMIM]Cl properties on the membrane performance

Verónica García; Hanna Valkama; Rafal Sliz; Alistair W.T. King; Risto Myllylä; Ilkka Kilpeläinen; Riitta L. Keiski

doi:10.1016/j.memsci.2013.05.010

Pervaporation recovery of [AMIM]Cl during wood dissolution; effect of [AMIM]Cl properties on the membrane performance

Verónica García
, Hanna Valkama^*
, Rafal Sliz
, Alistair W.T. King
, Risto Myllylä
, Ilkka Kilpeläinen
, Riitta L. Keiski

^*Corresponding author for this work

Not published at VTT

University of Oulu
University of Helsinki

Research output: Contribution to journal › Article › Scientific › peer-review

4 Citations (Scopus)

Abstract

This paper presents the stability and performance of a polyvinyl alcohol-TiO₂ (Helmholtz-Zentrum Geesthacht, HZG) membrane for removing water from 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) using pervaporation. The impact of the ionic liquid (IL) on the membrane was assessed through the pervaporation of water/n-butanol mixtures (5wt%/95wt%) at 60°C before and after the membrane was in contact with [AMIM]Cl for a period of time (1, 3 and 5 days) and temperature (40, 60 and 80°C). Response surface methodology was used for the experimental design and result analyzing.The central composite face design yielded empirical models with an excellent fit and predictive power for the responses total flux through the membrane and concentration of water in the permeate. The membrane tolerated the contact with [AMIM]Cl in all the conditions studied. The total flux of components increased up to 3 times with the contact with the IL and 3 to 8 times with the increase in the temperature at which the contact occurred. However, the permeate was more diluted in water. The period of contact affected moderately the responses. Finally, the dehydration of the used [AMIM]Cl at 60°C showed low water fluxes through the membrane: 9.42×10^-7kgm^-2s^-1.

Original language	English
Pages (from-to)	9-15
Number of pages	7
Journal	Journal of Membrane Science
Volume	444
DOIs	https://doi.org/10.1016/j.memsci.2013.05.010
Publication status	Published - 1 Oct 2013
MoE publication type	A1 Journal article-refereed

Funding

This research was conducted under the Finnish Bioeconomy Cluster's Future Biorefineries project. Finnish Bioeconomy Cluster and the Funding Agency of Technology and Innovation, Tekes, are acknowledged for financing this research. The authors would like to thank Prof. Marja Lajunen's research group, Department of Chemistry, University of Oulu, Oulu, Finland for their assistance in the IL synthesis. Mr. Sampo Mattila and Mr. Lauri Hiltunen from the Department of Chemistry, University of Oulu, Oulu, are acknowledged for performing the NMR analyses. The authors are grateful to the Helmholtz-Zentrum Geesthacht, HZG, for generously supplying the membranes used in this study. Further, the authors would like to thank Ms. Auli Turkki, Mr. Ismo Koskenkorva and Mr. Daniel Perez Dogen for their assistance during the experiments.

Keywords

[AMIM]Cl
Ionic liquid purification
Membrane stability
Pervaporation
Response surface methodology

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Cite this

@article{43e2eb32b20b4ce29817351ad577bfed,

title = "Pervaporation recovery of [AMIM]Cl during wood dissolution; effect of [AMIM]Cl properties on the membrane performance",

abstract = "This paper presents the stability and performance of a polyvinyl alcohol-TiO2 (Helmholtz-Zentrum Geesthacht, HZG) membrane for removing water from 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) using pervaporation. The impact of the ionic liquid (IL) on the membrane was assessed through the pervaporation of water/n-butanol mixtures (5wt\%/95wt\%) at 60°C before and after the membrane was in contact with [AMIM]Cl for a period of time (1, 3 and 5 days) and temperature (40, 60 and 80°C). Response surface methodology was used for the experimental design and result analyzing.The central composite face design yielded empirical models with an excellent fit and predictive power for the responses total flux through the membrane and concentration of water in the permeate. The membrane tolerated the contact with [AMIM]Cl in all the conditions studied. The total flux of components increased up to 3 times with the contact with the IL and 3 to 8 times with the increase in the temperature at which the contact occurred. However, the permeate was more diluted in water. The period of contact affected moderately the responses. Finally, the dehydration of the used [AMIM]Cl at 60°C showed low water fluxes through the membrane: 9.42×10-7kgm-2s-1.",

keywords = "[AMIM]Cl, Ionic liquid purification, Membrane stability, Pervaporation, Response surface methodology",

author = "Ver{\'o}nica Garc{\'i}a and Hanna Valkama and Rafal Sliz and King, \{Alistair W.T.\} and Risto Myllyl{\"a} and Ilkka Kilpel{\"a}inen and Keiski, \{Riitta L.\}",

note = "Funding Information: This research was conducted under the Finnish Bioeconomy Cluster's Future Biorefineries project. Finnish Bioeconomy Cluster and the Funding Agency of Technology and Innovation, Tekes, are acknowledged for financing this research. The authors would like to thank Prof. Marja Lajunen's research group, Department of Chemistry, University of Oulu, Oulu, Finland for their assistance in the IL synthesis. Mr. Sampo Mattila and Mr. Lauri Hiltunen from the Department of Chemistry, University of Oulu, Oulu, are acknowledged for performing the NMR analyses. The authors are grateful to the Helmholtz-Zentrum Geesthacht, HZG, for generously supplying the membranes used in this study. Further, the authors would like to thank Ms. Auli Turkki, Mr. Ismo Koskenkorva and Mr. Daniel Perez Dogen for their assistance during the experiments. ",

year = "2013",

month = oct,

day = "1",

doi = "10.1016/j.memsci.2013.05.010",

language = "English",

volume = "444",

pages = "9--15",

journal = "Journal of Membrane Science",

issn = "0376-7388",

publisher = "Elsevier",

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TY - JOUR

T1 - Pervaporation recovery of [AMIM]Cl during wood dissolution; effect of [AMIM]Cl properties on the membrane performance

AU - García, Verónica

AU - Valkama, Hanna

AU - Sliz, Rafal

AU - King, Alistair W.T.

AU - Myllylä, Risto

AU - Kilpeläinen, Ilkka

AU - Keiski, Riitta L.

N1 - Funding Information: This research was conducted under the Finnish Bioeconomy Cluster's Future Biorefineries project. Finnish Bioeconomy Cluster and the Funding Agency of Technology and Innovation, Tekes, are acknowledged for financing this research. The authors would like to thank Prof. Marja Lajunen's research group, Department of Chemistry, University of Oulu, Oulu, Finland for their assistance in the IL synthesis. Mr. Sampo Mattila and Mr. Lauri Hiltunen from the Department of Chemistry, University of Oulu, Oulu, are acknowledged for performing the NMR analyses. The authors are grateful to the Helmholtz-Zentrum Geesthacht, HZG, for generously supplying the membranes used in this study. Further, the authors would like to thank Ms. Auli Turkki, Mr. Ismo Koskenkorva and Mr. Daniel Perez Dogen for their assistance during the experiments.

PY - 2013/10/1

Y1 - 2013/10/1

N2 - This paper presents the stability and performance of a polyvinyl alcohol-TiO2 (Helmholtz-Zentrum Geesthacht, HZG) membrane for removing water from 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) using pervaporation. The impact of the ionic liquid (IL) on the membrane was assessed through the pervaporation of water/n-butanol mixtures (5wt%/95wt%) at 60°C before and after the membrane was in contact with [AMIM]Cl for a period of time (1, 3 and 5 days) and temperature (40, 60 and 80°C). Response surface methodology was used for the experimental design and result analyzing.The central composite face design yielded empirical models with an excellent fit and predictive power for the responses total flux through the membrane and concentration of water in the permeate. The membrane tolerated the contact with [AMIM]Cl in all the conditions studied. The total flux of components increased up to 3 times with the contact with the IL and 3 to 8 times with the increase in the temperature at which the contact occurred. However, the permeate was more diluted in water. The period of contact affected moderately the responses. Finally, the dehydration of the used [AMIM]Cl at 60°C showed low water fluxes through the membrane: 9.42×10-7kgm-2s-1.

AB - This paper presents the stability and performance of a polyvinyl alcohol-TiO2 (Helmholtz-Zentrum Geesthacht, HZG) membrane for removing water from 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) using pervaporation. The impact of the ionic liquid (IL) on the membrane was assessed through the pervaporation of water/n-butanol mixtures (5wt%/95wt%) at 60°C before and after the membrane was in contact with [AMIM]Cl for a period of time (1, 3 and 5 days) and temperature (40, 60 and 80°C). Response surface methodology was used for the experimental design and result analyzing.The central composite face design yielded empirical models with an excellent fit and predictive power for the responses total flux through the membrane and concentration of water in the permeate. The membrane tolerated the contact with [AMIM]Cl in all the conditions studied. The total flux of components increased up to 3 times with the contact with the IL and 3 to 8 times with the increase in the temperature at which the contact occurred. However, the permeate was more diluted in water. The period of contact affected moderately the responses. Finally, the dehydration of the used [AMIM]Cl at 60°C showed low water fluxes through the membrane: 9.42×10-7kgm-2s-1.

KW - [AMIM]Cl

KW - Ionic liquid purification

KW - Membrane stability

KW - Pervaporation

KW - Response surface methodology

UR - https://www.scopus.com/pages/publications/84878860576

U2 - 10.1016/j.memsci.2013.05.010

DO - 10.1016/j.memsci.2013.05.010

M3 - Article

AN - SCOPUS:84878860576

SN - 0376-7388

VL - 444

SP - 9

EP - 15

JO - Journal of Membrane Science

JF - Journal of Membrane Science

ER -

Pervaporation recovery of [AMIM]Cl during wood dissolution; effect of [AMIM]Cl properties on the membrane performance

Abstract

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Keywords

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