SEPARATION OF OXYGEN FROM SEAWATER BY MEMBRANE PERMEATION

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$55,879.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
8848
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Membrane Technology & Research
1360 Willow Rd, Menlo Park, CA, 94025
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR CARL-MARTIN BELL
(415) 328-2228
Business Contact:
() -
Research Institution:
n/a
Abstract
A RELIABLE METHOD OF EXTRACTING DISSOLVED OXYGEN FROM SEAWATER IS REQUIRED FOR A NUMBER OF NAVAL APPLICATIONS. THIS PROPOSAL DESCRIBES THE DEVELOPMENT OF A MEMBRANE SYSTEM TO PERFORM THIS SEPARATION. IN THIS SYSTEM, SEAWATER CONTAINING DISSOLVED AIR IS BROUGHT IN CONTACT WITH A SUITABLE SELECTIVE MEMBRANE, AND A PARTIAL VACUUM IS APPLIED TO THE OTHER SIDE OF THE MEMBRANE. WATER AND DISSOLVED AIR PERMEATE THE MEMBRANE. THE WATER IS CONDENSED, PRODUCING A POTABLE WATER STREAM AND LEAVING AN OXYGEN-ENRICHED AIR STREAM. WE WILL USE THIN-FILM COMPOSITE POLY(DIMETHYLSILOXANE) OR ETHYLCELLULOSE MEMBRANES ALREADY PRODUCED AT MEMBRANE TECHNOLOGY AND RESEARCH, INC. (MTR), FOR THIS APPLICATION. IN THE PHASE I PROGRAM, THE TECHNICAL FEASIBILITY OF THE APPROACH WILL BE DEMONSTRATED USING A SMALL-BENCH SCALE SYSTEM AND 0.2-M(2) SPIRAL-WOUND MEMBRANE MODULES. BASED ON THESE RESULTS, A PRELIMINARY DESIGN ANALYSIS OF A UNIT FOR A 50PERSON SUBMARINE CREW WILL BE PERFORMED. IN A PHASE II PROGRAM, A COMPLETE PILOT UNIT SUITABLE FOR FIELD EVALUATION WOULD BE PRODUCED.

* information listed above is at the time of submission.

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