THIN LAYER IMMOBILIZED LIQUID MEMBRANES FOR GAS SEPARATIONS

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: N/A
Agency Tracking Number: 1570
Amount: $189,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1986
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
A/g Technology Corp.
34 Wexford Street, Needham, MA, 02194
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Arye Gollan
 President
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE NEED FOR ENERGY CONSERVATION TO REDUCE US DEPENDENCE ON POTENTIALLY UNSTABLE FOREIGN ENERGY SUPPLIES IS WELL DOCUMENTED. ONE MAJOR POTENTIAL ENERGY CONSERVATION MEASURE IS COMBUSTION WITH OXYGEN ENRICHED AIR. CONVENTIONAL METHODS FOR PRODUCING OXYGEN ENRICHED AIR ARE UNECONOMICAL AND HENCE ARE NOT PRACTICED. MEMBRANE PROCESSES, ESPECIALLY THOSE BASED ON IMMOBILIZED LIQUID MEMBRANES ARE CHARATERISICALLY SIMPLE AND POTENTIALLY HIGHLY ECONOMICAL TO OPERATE. LIQUID MEMBRANE CONCEPTS PROPOSED TO DATE EMPLOY PRINCIPALLY SYMMETRIC MICROPOROUS POLYMERIC STRUCTURES TO HOST THE IMMOBILIZED LIQUID BARRIER. CONSEQUENTLY, THE THICKNESS OF THE LIQUID MEMBRANE IS THE SAME AS THE SUPPORT STRUCTURE'S THICKNESS -- TYPICALLY 100 TO 200 MICRONS. SINCE IN MANY GAS TRANSPORT THROUGH LIQUID MEMBRANES IS DIFFUSION-LIMITED, REDUCED LIQUID LAYER THICKNESSES ARE HIGHLY DESIREABLE. THE PROPOSED PROGRAM IS CONCERNED WITH THE DEVELOPMENT OF THIN IMMOBILIZED LIQUID MEMBRANES THROUGH THE USE OF ASYMMETRIC POLYMERIC MICROPOROUS STRUCTURES WHEREBY THE LIQUID LAYER IS FORMED WITHIN THE SMALLER PORE REGION WHICH IS TYPICALLY IN THE ORDER OF A FEW MICRONS THICK. HOLLOW FIBER MEMBRANE SUPPORTS WILL BE USED DUE TO BOTH THEIR COMPACT NATURE AND PREFERENCE OVER OTHER GEOMETRIES FOR GAS SEPARATIONS. OXYGEN ENRICHMENT EVALUATION WILL, IN PHASE I, CENTER ON MEMBRANE FORMATION WITH PASSIVE LIQUIDS. REACTIVE LIQUIDS (FACILITATED TRANSPORT) WILL BE EXPLORED IN PHASE II.

* information listed above is at the time of submission.

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