Low cost hydrogen/novel membranes technology for hydrogen separation from synthesis gas, Phase 1. [Palladium-silver/poly(etherimide), polysulfone/poly(dimethylsiloxane)/poly(ether-esteramide)composite membranes]
During this quarter, work continued on the development of high-flux palladium-silver membranes for the separation of hydrogen from carbon dioxide. Palladium-silver/poly(etherimide) composite membranes were prepared by a vacuum sputtering technique. The influence of different poly(etherimide) support membranes on the performance of palladium-silver membranes was investigated. All membranes tested showed a hydrogen/carbon dioxide selectivity lower than that of the uncoated poly(etherimide)/poly(dimethylsiloxane) membranes. This is probably due to damage of the skin layer of the asymmetric poly(etherimide) support membranes during the palladium-silver electron bombardment. Polysulfone/poly(dimethylsiloxane)/poly(ether-ester-amide) composite membranes were also prepared. Membrane samples consistently showed a carbon dioxide/hydrogen selectivity of 9 to 10 and a normalized carbon dioxide flux of 2 to 4 {times} 10{sup {minus}4} cm{sup 3} (STP)/cm{sup 2}{center dot}sec{center dot}cmHg. These are extremely good values, superior to any commercially available membranes for this separation. 2 figs., 4 tabs.
- Research Organization:
- Membrane Technology and Research, Inc., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC21-85MC22130
- OSTI ID:
- 5045913
- Report Number(s):
- DOE/MC/22130-T10; ON: DE92017782
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON DIOXIDE
SEPARATION PROCESSES
HYDROGEN
MEMBRANES
MATERIALS TESTING
SYNTHESIS GAS
CHEMICAL PREPARATION
COMPARATIVE EVALUATIONS
COMPOSITE MATERIALS
EXPERIMENTAL DATA
ORGANIC POLYMERS
PALLADIUM
PERFORMANCE TESTING
PROGRESS REPORT
SILOXANES
SILVER
SULFONES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DATA
DOCUMENT TYPES
ELEMENTS
EVALUATION
FLUIDS
GASES
INFORMATION
MATERIALS
METALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POLYMERS
SYNTHESIS
TESTING
TRANSITION ELEMENTS
080107* - Hydrogen- Production- Coal Gasification
010404 - Coal
Lignite
& Peat- Gasification
400105 - Separation Procedures