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Title: Enzymatically active high-flux selectively gas-permeable membranes

Abstract

An ultra-thin, catalyzed liquid transport medium-based membrane structure fabricated with a porous supporting substrate may be used for separating an object species such as a carbon dioxide object species. Carbon dioxide flux through this membrane structures may be several orders of magnitude higher than traditional polymer membranes with a high selectivity to carbon dioxide. Other gases such as molecular oxygen, molecular hydrogen, and other species including non-gaseous species, for example ionic materials, may be separated using variations to the membrane discussed.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1236629
Patent Number(s):
9,242,210
Application Number:
14/215,964
Assignee:
STC.UNM, SANDIA CORPORATION SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Jan 26
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Jiang, Ying-Bing, Cecchi, Joseph L., Rempe, Susan, FU, Yaqin, and Brinker, C. Jeffrey. Enzymatically active high-flux selectively gas-permeable membranes. United States: N. p., 2016. Web.
Jiang, Ying-Bing, Cecchi, Joseph L., Rempe, Susan, FU, Yaqin, & Brinker, C. Jeffrey. Enzymatically active high-flux selectively gas-permeable membranes. United States.
Jiang, Ying-Bing, Cecchi, Joseph L., Rempe, Susan, FU, Yaqin, and Brinker, C. Jeffrey. 2016. "Enzymatically active high-flux selectively gas-permeable membranes". United States. doi:. https://www.osti.gov/servlets/purl/1236629.
@article{osti_1236629,
title = {Enzymatically active high-flux selectively gas-permeable membranes},
author = {Jiang, Ying-Bing and Cecchi, Joseph L. and Rempe, Susan and FU, Yaqin and Brinker, C. Jeffrey},
abstractNote = {An ultra-thin, catalyzed liquid transport medium-based membrane structure fabricated with a porous supporting substrate may be used for separating an object species such as a carbon dioxide object species. Carbon dioxide flux through this membrane structures may be several orders of magnitude higher than traditional polymer membranes with a high selectivity to carbon dioxide. Other gases such as molecular oxygen, molecular hydrogen, and other species including non-gaseous species, for example ionic materials, may be separated using variations to the membrane discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 1
}

Patent:

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  • The less permeable zones of subterranean formations having temperatures above about 250* F are acidized by selectively plugging the more permeable zones with acid-soluble particulate diverting agents and then injecting a substantially anhydrous acid precursor into the formation. The acid precursor, which is a normally liquid halogenated hydrocarbon having one or two carbon atoms per molecule, hydrolyzes in situ to generate a hydrohalic acid. Subsequent to the placement of the acid precursor in the less permeable zones, the diverting agents may be solubilized in acid, such as the partially spent acid returning to the well.
  • The present invention provides engineered bacteriophages that express at least one biofilm degrading enzyme on their surface and uses thereof for degrading bacterial biofilms. The invention also provides genetically engineered bacteriophages expressing the biofilm degrading enzymes and proteins necessary for the phage to replicate in different naturally occurring biofilm producing bacteria. The phages of the invention allow a method of biofilm degradation by the use of one or only a few administration of the phage because the system using these phages is self perpetuating, and capable of degrading biofilm even when the concentration of bacteria within the biofilm is low.
  • A method and apparatus is provided for casting a polymeric membrane on the inside surface of porous tubes to provide a permeate filter system capable of withstanding hostile operating conditions and having excellent selectivity capabilities. Any polymer in solution, by either solvent means or melt processing means, is capable of being used in the present invention to form a thin polymer membrane having uniform thickness on the inside surface of a porous tube. Multiple tubes configured as a tubular module can also be coated with the polymer solution. By positioning the longitudinal axis of the tubes in a substantially horizontalmore » position and rotating the tube about the longitudinal axis, the polymer solution coats the inside surface of the porous tubes without substantially infiltrating the pores of the porous tubes, thereby providing a permeate filter system having enhanced separation capabilities.« less
  • A method and apparatus is provided for casting a polymeric membrane on the inside surface of porous tubes to provide a permeate filter system capable of withstanding hostile operating conditions and having excellent selectivity capabilities. Any polymer in solution, by either solvent means or melt processing means, is capable of being used in the present invention to form a thin polymer membrane having uniform thickness on the inside surface of a porous tube. Multiple tubes configured as a tubular module can also be coated with the polymer solution. By positioning the longitudinal axis of the tubes in a substantially horizontalmore » position and rotating the tube about the longitudinal axis, the polymer solution coats the inside surface of the porous tubes without substantially infiltrating the pores of the porous tubes, thereby providing a permeate filter system having enhanced separation capabilities.« less
  • A selectively gas-permeable composite membrane and a process for producing said composite membrane are described. The composite membrane comprises a polymeric material support and a thin membrane deposited on the support, said thin membrane being obtained by glow discharge plasma polymerization of an organosilane compound containing at least one double bond or triple bond. Alternatively, the composite membrane comprises a polymeric material support having an average pore diameter of at least 0.1 micron, a hardened or cross-linked polyorganosiloxane layer on the support, and a thin membrane on the polyorganosiloxane layer, said thin membrane being obtained by plasma polymerization due tomore » glow discharge of an organosilane compound containing at least one double bond or triple bond.« less