Dehydration processes using membranes with hydrophobic coating

Huang, Yu; Baker, Richard W; Aldajani, Tiem; Ly, Jennifer

Title: Dehydration processes using membranes with hydrophobic coating

Patent · Tue Jul 30 00:00:00 EDT 2013

OSTI ID:1088985

Huang, Yu; Baker, Richard W; Aldajani, Tiem; Ly, Jennifer

Processes for removing water from organic compounds, especially polar compounds such as alcohols. The processes include a membrane-based dehydration step, using a membrane that has a dioxole-based polymer selective layer or the like and a hydrophilic selective layer, and can operate even when the stream to be treated has a high water content, such as 10 wt % or more. The processes are particularly useful for dehydrating ethanol.

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Research Organization:: Membrane Technology and Research, Inc. (Newark, CA)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-04ER84001

Assignee:: Membrane Technology and Research, Inc. (Newark, CA)

Patent Number(s):: 8,496,831

Application Number:: 11/897,675

OSTI ID:: 1088985

Country of Publication:: United States

Language:: English

References (13)

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Gas separation using coated membranes Pinnau, Ingo; He, Zhenjie; Blanc, Rolande https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6896717 US Patent Document 6,896,717	patent	May 2005
Multilayer interfacial composite membrane Castro, Robert P.; Baker, Richard W.; Wijmans, Johannes G. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5049167 US Patent Document 5,049,167	patent	September 1991
Gas separation using organic-vapor-resistant membranes in conjunction with organic-vapor-selective membranes Baker, Richard W.; Pinnau, Ingo; He, Zhenjie https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6572679 US Patent Document 6,572,679	patent	June 2003
Amorphous Teflons AF as organophilic pervaporation materials Transport of individual components Polyakov, A. Journal of Membrane Science, Vol. 216, Issue 1-2 https://doi.org/10.1016/S0376-7388(03)00077-2	journal	May 2003
Membranes of (per)fluorinated amorphous polymers Arcella, Vincenzo; Gordano, Amalia; Maccone, Patrizia https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6726840 US Patent Document 6,726,840	patent	April 2004
Multi-layer membrane and the use thereof for the separation of liquid mixtures according to the pervaporation process Bruschke, Hartmut https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4755299 US Patent Document 4,755,299	patent	July 1988
Perfluorodioxole membranes Nemser, Stuart M.; Roman, Ian C. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5051114 US Patent Document 5,051,114	patent	September 1991
Hydrophilic/hydrophobic IPN membranes for the pervaporation of ethanol-water mixture Lee, YoungKeun; Kim, SungChul Polymer Bulletin, Vol. 20, Issue 3 https://doi.org/10.1007/BF00261979	journal	September 1988
Transport properties of poly(vinyl alcohol) membranes of different degrees of crystallinity. I. Pervaporation results Gref, R.; Nguyen, Q. T.; Schaetzel, P. Journal of Applied Polymer Science, Vol. 49, Issue 2 https://doi.org/10.1002/app.1993.070490203	journal	July 1993
Separation process using pervaporation and dephlegmation Vane, Leland; Mairal, Anurag; Ng, Alvin https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6755975 US Patent Document 6,755,975	patent	June 2004
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FTIR, Diffusivity, Selectivity, and Aging Studies of Interactions of Hydrazine, Water, and Hydrazine Hydrate with the Ethylcellulose Membrane Ravindra, R.; Krovvidi, Kameswara R.; Khan, A. A. Macromolecules, Vol. 30, Issue 11 https://doi.org/10.1021/ma961779t	journal	June 1997

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