NAMS 2002 Workshop - ICOM 2008

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Nanostructured Membranes I – 2 Monday July 14, 3:00 PM-3:30 PM, Moloka’i Physical Aging and Mixed-Gas Transport Properties of Microporous Polymers for Gas Separation Applications S. Thomas (Speaker), Membrane Technology and Research, Inc., Menlo Park, CA, USA I. Pinnau, Membrane Technology and Research, Inc., Menlo Park, CA, USA, ipin@mtrinc.com M. Guiver, Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontario, Canada N. Du, Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontario, Canada J. Song, Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontario, Canada Membrane-based gas separation has been practiced as an economically viable separation technology during the past 30 years. Progress in this field resulted from significant improvements in materials science, development of high- performance membranes, and optimization in process design. Important applications include: a) nitrogen production from air, b) hydrogen recovery in petrochemical operations, c) removal of acid gases from natural gas, and d) recovery of condensable, high-value organic vapors from a variety of waste-gas streams. This presentation will focus on novel, intrinsically microporous glassy polymers, which may find applications in a wide variety of commercially important applications. The first generation of microporous glassy polymers was based on ultra-high free-volume glassy polyacetylene-based polymers, which exhibit the highest organic vapor/permanent gas selectivties coupled with the highest organic vapor permeabilities of all known polymers. However, a significant disadvantage of this class of materials is their inherent poor physical and chemical instability when operated under industrial conditions. Recently, Budd et al. reported that a new class of rigid, glassy ladder polymers, so called ‘polymers with intrinsic microporosity’ (PIM) may offer advantages over microporous polyacetylene-based polymers for membrane separations. This presentation will compare the transport properties of these two classes of microporous polymers for membrane separations. This study includes, for the first time, long-term gas permeability data of PIM-based materials. We studied the pure-gas permeation properties of PIM for over one year and the polymer’s properties are exceptional. The initial oxygen permeability dropped from 1,535 Barrer to 700 Barrer after one year of operation. On the other hand, the initial oxygen/nitrogen selectivity increased from 3.7 to 5.2. These are unmatched permeation properties for air separation, which lie far beyond the typical Robeson permeability/selectivity trade-off. In addition, PIM is stable in hydrocarbon environment with very high mixed-gas selectivity and permeability. For example, PIM-1 has a mixed- gas nbutane/hydrogen selectivity of 30-50 depending on the feed composition. In summary, microporous glassy polymers exhibit properties, which are unmatched
y conventional polymers and provide a window to broaden possible applications for membranes used for gas separations.
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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
Page 49 and 50: Biomedical and Biotechnology I - 1
Page 53 and 54: Acknowledgments The Authors acknowl
Page 55 and 56: isolation of CD34+ cells was achiev
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Page 69 and 70: observed in two subsequence phenome
Page 71 and 72: Membrane Modeling I - Fundamental A
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Page 75 and 76: of the impact of the operating para
Page 77 and 78: Oral Presentation Abstracts Afterno
Page 79 and 80: Hybrid and Novel Processes I - 2 Mo
Page 81 and 82: Arora, M.B., J.A. Hestekin, S.W. Sn
Page 83 and 84: Conclusions Reverse electrodialysis
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Page 89 and 90: Nanofiltration and Reverse Osmosis
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Page 93 and 94: The development of these membranes
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Page 115 and 116: investigated at first. As a result,
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Page 127 and 128: Composite Polymeric Membrane Format
Page 135 and 136: NAMS Alan S. Michaels Award - 1a 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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Inorganic Membranes II - 2 Thursday
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confirms that the carbon dioxide pe
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permeability, stability issues comp
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Fuel Cells II - 2 Thursday July 17,
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5. Conclusion In this work, the evo
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Oral Presentation Abstracts Afterno
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an essentially pure H2 product is c
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In the presentation, we will presen
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was observed, indicative of the sim
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References Arora, M.B., J.A. Hestek
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performance of fibers is analyzed a
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Membrane Fouling III - RO & Biofoul
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[4] H. Noureddini, Book of Abstract
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component (PX, OX) separation via p
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Generally these results were in goo
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introduction of methyl groups into
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separation quality (10 µS/cm) and
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Desalination II - 3 Thursday July 1
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drop are linearly related (although
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antiscalant oxidation has been limi
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oth 15±5 kDa, which suggests that
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Atomic Force Microscopy (AFM), and
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y single gas permeation experiments
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PDMS toplayers were only partially
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noting that cross-linking agents co
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such extended parameter space in th
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Hybrid Membranes - 6 Thursday July
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Plenary Lecture III Friday July 18.
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Gas Separation V - 1 - Keynote Frid
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References: [1] H. Lin, E. Van Wagn
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elative contributions of Fickian di
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Gas Separation V - 4 Friday July 18
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Gas Separation V - 6 Friday July 18
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Electron Microscopy (TEM) analyses
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- Hybrid RO train: A hybrid RO trai
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Nanofiltration and Reverse Osmosis
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Nanofiltration and Reverse Osmosis
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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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