LAPSE

LAPSE:2019.0453
Published Article
LAPSE:2019.0453
Supported Ionic Liquid Membranes for Separation of Lignin Aqueous Solutions
Ricardo Abejón, Javier Rabadán, Silvia Lanza, Azucena Abejón, Aurora Garea, Angel Irabien
April 8, 2019
Lignin valorization is a key aspect to design sustainable management systems for lignocellulosic biomass. The successful implementation of bio-refineries requires high value added applications for the chemicals derived from lignin. Without effective separation processes, the achievement of this purpose is difficult. Supported ionic liquid membranes can play a relevant role in the separation and purification of lignocellulosic components. This work investigated different supported ionic liquid membranes for selective transport of two different types of technical lignins (Kraft lignin and lignosulphonate) and monosaccharides (xylose and glucose) in aqueous solution. Although five different membrane supports and nine ionic liquids were tested, only the system composed by [BMIM][DBP] as an ionic liquid and polytetrafluoroethylene (PTFE) as a membrane support allowed the selective transport of the tested solutes. The results obtained with this selective membrane demonstrated that lignins were more slowly transferred from the feed compartment to the stripping compartment through the membrane than the monosaccharides. A model was proposed to calculate the effective mass transfer constants of the solutes through the membrane (values in the range 0.5⁻2.0 × 10−3 m/h). Nevertheless, the stability of this identified selective membrane and its potential to be implemented in effective separation processes must be further analyzed.
Keywords
glucose, lignin, separation, supported ionic liquid membranes, xylose
Subject
Suggested Citation
Abejón R, Rabadán J, Lanza S, Abejón A, Garea A, Irabien A. Supported Ionic Liquid Membranes for Separation of Lignin Aqueous Solutions. (2019). LAPSE:2019.0453
Author Affiliations
Abejón R: Chemical and Biomolecular Engineering Department, University of Cantabria. Avda. Los Castros s/n, 39005 Santander, Spain [ORCID]
Rabadán J: Chemical and Biomolecular Engineering Department, University of Cantabria. Avda. Los Castros s/n, 39005 Santander, Spain
Lanza S: Chemical and Biomolecular Engineering Department, University of Cantabria. Avda. Los Castros s/n, 39005 Santander, Spain
Abejón A: Chemical and Biomolecular Engineering Department, University of Cantabria. Avda. Los Castros s/n, 39005 Santander, Spain
Garea A: Chemical and Biomolecular Engineering Department, University of Cantabria. Avda. Los Castros s/n, 39005 Santander, Spain
Irabien A: Chemical and Biomolecular Engineering Department, University of Cantabria. Avda. Los Castros s/n, 39005 Santander, Spain [ORCID]
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Journal Name
Processes
Volume
6
Issue
9
Article Number
E143
Year
2018
Publication Date
2018-09-01
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr6090143, Publication Type: Journal Article
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LAPSE:2019.0453
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doi:10.3390/pr6090143
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Apr 8, 2019
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CC BY 4.0
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Apr 8, 2019
 
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Apr 8, 2019
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http://psecommunity.org/LAPSE:2019.0453
 
Original Submitter
Calvin Tsay
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