NAMS 2002 Workshop - ICOM 2008

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Pervaporation and Vapor Permeation II – 3 Thursday July 17, 3:30 PM-4:00 PM, Moloka’i Ion-containing Polyimide Membranes: A Way of Overcoming the Trade-off Permeability in Pervaporation ? A. Jonquieres (Speaker), Nancy Universite, France - Anne.Jonquieres@ensic.inpl-nancy.fr M. Awkal, Nancy Universite, France R. Clement, Nancy Universite, France P. Lochon, Nancy Universite, France Two international patents [1,2] and also recent results [3] have shown that polymeric membranes containing cationic groups are highly efficient for the removal of protic species (e.g. alcohols) from organic mixtures by pervaporation, with an important potential application for the purification of ethyl-tert-butyl ether (ETBE). By appropriate fiscal privileges for the past ten years, the European Union has been strongly inciting the large production of this alkyl ether from agricultural ethanol. Thanks to its specific advantages and its much better biodegradability than methyl-tert- butyl ether (MTBE), ETBE is currently considered as one of the most promising bio-fuels [4,5]. Nevertheless, its industrial synthesis process leads to an azeotropic mixture containing 20 wt % of ethanol which has to be removed for ETBE purification. If the former polymer membranes were well performing for this separation, the rather poor control of their chemical structure did not allow any detailed analysis about the influence of the cationic sites on their permeability. Taking advantage of our former experience on polyimide copolymers for this separation [6], we recently developed the synthesis and characterization of 3 families of new ion-containing polyimide copolymers, with a control of the number of their cationic ammonium groups, the length of their alkyl side chain and the type of their counter- ions [7,8]. In this new communication, the membranes features of the 3 copolymer families will be discussed in terms of structureproperty relationships on the basis of sorption and pervaporation results obtained for the separation of the azeotropic mixture EtOH/ETBE. In particular, it will be shown how simply changing the chemical structure of the cationic groups enabled to increase sharply permeability with a very low impact on selectivity, therefore overcoming the usual trade- off permeability/selectivity. [1] H. Steinhauser, H. Brüschke, European Patent 0674940 B1 (1995). [2] H. Steinhauser, H. Brüschke, US Patent 5,700,374 (1997). [3] S. Touchal, D. Roizard, L. Perrin, Journal of Applied Polymer Science, Vol. 99 (2006) 3622.
[4] H. Noureddini, Book of Abstracts, 219th ACS National Meeting, San Francisco, CA, March 26- 30, 2000. [5] R. Koenen, W. Puettmann, Grundwasser, Vol. 10 (2005) 227. [6] A. Jonquieres, R. Clément, P. Lochon, Progress in Polymer Science, Vol. 27 (<strong>2002</strong>) 1803. (review) [7] M. Awkal, A. Jonquières, G. Creffier, R. Clément, P. Lochon, Macromolecules, Vol. 37 (2004), 684. [8] M. Awkal, A. Jonquières, R. Clément, P. Lochon, Polymer, Vol. 47 (2006), 5724.
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ICOM 2008 Oral Presentation Proceed
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Professor Yoram Cohen Professor Joh
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ICOM 2008 Staff: The University of
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ICOM 2008 Workshop Schedule: Saturd
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Monday, July 14 - Afternoon Session
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Tuesday, July 15 - Afternoon Sessio
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8:15AM 8:35AM EMS Barrer Prize (Mau
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Friday, July 18 - Morning Sessions
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Oral Presentation Abstracts Morning
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Gas Separation I - 1 - Keynote Mond
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esulting permeability selectivity o
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chain packing. To ensure a well pha
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Gas Separation I - 5 Monday July 14
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satisfactory way the corresponding
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Drinking and Wastewater Application
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an adjusted water management in the
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prospect for new energy sources as
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oxygen removal to the desired pH. C
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(Cl - , SO4 2- , As(V)) and water t
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[1] R. Lima de Miranda, J. Kruse, K
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Polymeric Membranes I - 4 Monday Ju
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Polymeric Membranes I - 5 Monday Ju
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Biomedical and Biotechnology I - 1
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Acknowledgments The Authors acknowl
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isolation of CD34+ cells was achiev
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membranes were then challenged with
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in crossflow mode operation were in
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hydroxide. For Mg/Ca = 0, the fouli
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improvement of filterability also t
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scale where fouling rates are commo
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observed in two subsequence phenome
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Membrane Modeling I - Fundamental A
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Membrane Modeling I - Fundamental A
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of the impact of the operating para
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Oral Presentation Abstracts Afterno
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Hybrid and Novel Processes I - 2 Mo
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Arora, M.B., J.A. Hestekin, S.W. Sn
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Conclusions Reverse electrodialysis
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energy recovery. This is a remarkab
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eaction with mediator due to the co
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Nanofiltration and Reverse Osmosis
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4.3x10 -6 to 7.4x10 -6 cm 2 /s. Bas
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The development of these membranes
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permeability, defined as water perm
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supports including charged (PSF/SPE
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[4] L. M. Robeson, Journal of Membr
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y conventional polymers and provide
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[3] P.M. Budd, K.J. Msayib, C.E. Ta
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Nanostructured Membranes I - 5 Mond
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Fuel Cells I - 1 Monday July 14, 2:
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investigated at first. As a result,
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Desalination I - 2 Monday July 14,
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Composite Polymeric Membrane Format
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NAMS Alan S. Michaels Award - 1a Tu
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NAMS Alan S. Michaels Award - 2 Tue
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opportunities for improving membran
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NAMS Alan S. Michaels Award - 4b Tu
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[4] K. Vanherck et al. Accepted for
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accumulation had a strong effect on
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and, if so, to develop correlations
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non-porous and porous membranes are
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[2] Palmeri, J., Sandeaux, R. Sande
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fouling. Information obtained from
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This work performed under the auspi
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etween Ru(bi-pyridine)3 2+ and meth
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[1] M. Barboiu, C. Luca, C. Guizard
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Nanostructured Membranes II - 5 Tue
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Nanostructured Membranes II - 6 Tue
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than 10 nm. XRD data suggest that t
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Pervaporation and Vapor Permeation
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ethanol/butanol (non solvent) combi
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forward osmosis, the RO process is
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Osmotically Driven Membrane Process
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References: [1] Stupp, S. I.; Lebon
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temperatures might bring about the
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References [1] S. Benita, Microenca
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solvent, were investigated (where a
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ease of manipulation as this allows
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Horizontal shrinkage does not have
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Absorption of water was determined
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Gas Separation II - 1 - Keynote Tue
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Gas Separation II - 2 Tuesday July
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concentration. These results are co
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Gas Separation II - 5 Tuesday July
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will be shown that homogeneous film
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which can adsorb on the surface of
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were collected, the viable bacteria
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pressure, and permporosimetry with
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Inorganic Membranes I - 3 Tuesday J
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Membrane Fouling - UF & Water Treat
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Membrane Modeling II - Gas Separati
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[10] Wang BG, Lv HL, Yang JC. Chem
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Membrane and Surface Modification I
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Gas Separation III - 1 - Keynote We
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Gas Separation III - 2 Wednesday Ju
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separation was next blended with di
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Polymeric Membranes II - 1 - Keynot
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Polymeric Membranes II - 3 Wednesda
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5. Erdodi, G.; Kennedy, J. P.; Prog
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observed for different locations in
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Biomedical and Biotechnology II - 3
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applied in the first two fields wil
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distribution of SBMA units within t
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5500 ppm (15 mM) was lowered to 30
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increasing the effective size of th
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etween 0 and 1), the automatic feed
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Membrane Modeling III - Process Sim
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Membrane Modeling III - Process Sim
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models developed suggests that ther
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start level has a huge impact on th
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Ultra- and Microfiltration I - Tran
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all three binary protein UF systems
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Synthetic solutions of ±-lactalbum
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Gas Separation IV - 2 Thursday July
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6. T. C. Merkel, Z. He, I. Pinnau,
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EMS Barrer Prize - 1b Thursday July
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EMS Barrer Prize - 3 Thursday July
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EMS Barrer Prize - 4b Thursday July
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EMS Barrer Prize - 5 Thursday July
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therapy options have been modelled
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Ultra- and Microfiltration II - Pro
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in the vicinity of the rising bubbl
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of feed water ionic strength) on re
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technology that has gained growing
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Optimize polymeric membranes for sa
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Page 373 and 374: Drinking and Wastewater Application
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Page 397 and 398: 5. Conclusion In this work, the evo
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Page 473 and 474: Electron Microscopy (TEM) analyses
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- Hybrid RO train: A hybrid RO trai
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concentration as well as on the sod
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scaling deposits in the DCMD device
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Silica colloidal solution with diff
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Membrane Fouling IV - RO & Desalina
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Polyacrylonitrile (PAN) UF membrane
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the polymer dope was PEI (12 wt%),
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Inorganic Membranes III - 1 - Keyno
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Inorganic Membranes III - 2 Friday
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CO2/H2 selectivity at high temperat
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ammonia complexes in aqueous soluti
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possible to have a membrane capable
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fired boiler flue gas, SOx and merc
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EPR/Ago/p-benzoquinone composite sh
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elated to the presence of free elec
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surroundings. When the temperature
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that no absorbent was detected in t
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days of filtration from 120 to 7-10
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was performed to restore membrane f
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with the SRT of 65 days, no correla
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Results Critical flux measurements
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MLSS is not directly proportional t
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Fuel Cells III - 2 Friday July 18,
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Fuel Cells III - 4 Friday July 18,
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Ultra- and Microfiltration III - Me
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can be deduced from the imaginary p
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membranes. The analysis of the ligh
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Membrane Contactors - 2 Friday July
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absorption liquid in the pores of t
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Packaging and Barrier Materials - 1
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Historically, all the approaches de
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