Pervaporation and Vapor Permeation Membrane Systems for ...

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Selective Removal of Water from Alcohols by Pervaporation is Relatively Easy • Membranes and modules are commercially available • Demonstrated to be competitive with molecular sieves • Process & membrane improvements will lead to broader acceptance
Polyvinyl Alcohol (PVA) is Benchmark Material for Ethanol Dehydration 1.0 0.8 VLE Y=X 1.0 0.8 Ethanol in Vapor (mass fraction) 0.6 0.4 0.6 0.4 0.2 0.2 PVA PAA-HCl/PVA Zeolite 0.0 0.0 0.90 0.92 0.94 0.96 0.98 1.00 Mass Fraction Ethanol in Liquid
Page 1 and 2: Pervaporation and Vapor Permeation
Page 3 and 4: 2005 National Research Council Repo
Page 5 and 6: Biofuels • Vision - efficient, sm
Page 7 and 8: Mol. Sieve From Renewable Motor Fue
Page 9 and 10: Distillation: energy-intensive at l
Page 11 and 12: Pervaporation • Membrane-based se
Page 13 and 14: Vapor Permeation - Pervaporation’
Page 15 and 16: Pervap Performance Measures (1 of 2
Page 17 and 18: Separation Factor Determines Qualit
Page 19 and 20: Pervaporation Modules Are Available
Page 21 and 22: Membrane Module …and even a fouli
Page 23 and 24: Why Not Pervaporation • Inherent
Page 25 and 26: Mid-Size USEPA Pervaporation Bench
Page 27 and 28: How Best to Integrate Fermentor Pe
Page 29 and 30: Pervaporation-Fermentation Integrat
Page 31 and 32: Advantages of Operating Pervap at H
Page 33 and 34: The benefits of high temperature op
Page 35 and 36: Mol. Sieve From Renewable Motor Fue
Page 37 and 38: Silicone Rubber is Benchmark Materi
Page 39 and 40: Mixed Matrix Membranes Offer Interm
Page 41 and 42: EPA Mixed Matrix Membranes 50 wt% z
Page 43 and 44: Zeolite particles = preferential pa
Page 45 and 46: Increase process efficiency using
Page 47 and 48: Pervaporation-dephlegmation can be
Page 49: BioSep Project Funded through USDA/
Page 53 and 54: U.S. EPA Contributing to Several In
Page 55: L.M. Vane, “A review of pervapora

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