HYDROGEN SEPARATION MEMBRANES

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$225,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
5250
Agency Tracking Number:
5250
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
6550 Research Rd, Bend, OR, 97701
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
DWAYNE T. FRIESEN
DIRECTOR
() -
Research Institute:
n/a
Abstract
MEMBRANE-BASED GAS SEPARATIONS ARE ATTRACTIVE BECAUSE OF THEIR INHERENT ENERGY EFFICIENCY AND LOW OPERATING COSTS. HOWEVER, METHODS CURRENTLY AVAILABLE FOR HYDROGEN SEPARATIONS ARE COSTLY AND INEFFICIENT. POLYMERIC MEMBRANESNOW IN USE ARE CAPABLE OF ONLY LIMITED SELECTIVITY, WHICH LEAVES SUBSTANTIAL AMOUNTS OF IMPURITIES IN THE HYDROGEN STREAM. THOSE MEMBRANES ARE ALSO HEAT-SENSITIVE; CONSEQUENTLY, MANY HYDROGEN-CONTAINING FEED STREAMS MUST BE COOLED BEFORE PROCESSING. METAL MEMBRANES OVERCOME MOST OF THESE PROBLEMS BY BEING HIGHLY SELECTIVE AND RESISTANT TO TEMPERATURES OF UP TO 500 DEGREE CELLCIUS. HOWEVER, CURRENT METALLIC HYDROGEN-SEPARATION MEMBRANES HAVE AN EXTREMELY HIGH CAPITAL COST, AS THEY ARE COMPOSED OF PALLADIUM ALLOYED WITHSILVER. IN THIS PROGRAM, BEND RESEARCH, INC. WILL EXAMINE THE TECHNICAL FEASIBILITY OF REPLACING THIS COSTLY MATERIAL WITHA TITANIUM ALLOY THAT IS HIGHLY PERMEABLE TO HYDROGEN. IN ORDER TO PREVENT OXIDES FROM FORMING ON THE SURFACE OF THE ALLOY AND THUS IMPEDING HYDROGEN TRANSPORT, ALLOY FILMS WILLBE CLEANED AND THEN COATED WITH A THIN LAYER ( 1 ) OF A NON-OXIDIZING METAL SUCH AS PALLADIUM OR NICKEL. SUCH MEMBRANES SHOULD IN PRINCIPLE BE MORE THAN THIRTY TIMES AS PERMEABLE TO HYDROGEN AND LESS THAN ONE-SEVENTH AS COSTLY AS PALLADIUM-SILVER MEMBRANES. DURING PHASE I, TECHNIQUES WILL BE DEVELOPED FOR CLEANING AND COATING THE ALLOY FILMS. THESE COATED-ALLOY MEMBRANES WILL THEN BE TESTED FOR HYDROGEN PERMEATION RATES AND SELECTIVITY USING FEED-STREAM COMPOSITIONS AND TEMPERATURES LIKELY TO BE FOUND IN ACTUAL FEED STREAMS. USING THESE RESULTS, THE RESEARCHERS WILL EVALUATE THE TECHNICAL AND ECONOMIC FEASIBILITY OF UTILIZING COATED-ALLOYMEMBRANES FOR IMPROVED HYDROGEN SEPARATIONS.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government