Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. [Poly(etherimide) and poly(ether-ester-amide) membranes]

Technical Report · Wed Jan 01 00:00:00 EST 1986

DOI:https://doi.org/10.2172/5039668· OSTI ID:5039668

During the last quarter several high performance membranes for the separation of hydrogen from nitrogen, carbon monoxide, hydrogen sulfide and carbon dioxide. The heat-resistant resin poly(etherimide) has been selected as the polymer with the most outstanding properties for the separation of hydrogen from nitrogen and carbon monoxide. Flat sheet and hollow fiber poly(etherimide) membranes have been prepared and evaluated with pure gases and gas mixtures at elevated pressures and temperatures. Multilayer composite poly(ether-ester-amide) membranes were also developed. These membranes are useful for the separation of carbon dioxide and hydrogen sulfide hydrogen. They have very high selectivities and extremely high normalized carbon dioxide and hydrogen sulfide fluxes. Separation of carbon dioxide/hydrogen streams is a key problem in hydrogen production from coal. The development of the two membranes now gives us two approaches to separate these gas streams, depending on the stream's composition. If the stream contains small quantities of hydrogen, the hydrogen- permeable poly(etherimide) membrane would be used to produce a hydrogen-enriched permeate. If the stream contains small quantities of carbon dioxide or hydrogen sulfide, the poly(ether-ester-amide) membrane would be used to produce a carbon dioxide/hydrogen sulfide-free, hydrogen-enriched residue stream. 6 fig., 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: 5039668
• Report Number(s): DOE/MC/22130-T12; ON: DE92017784
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON DIOXIDE
SEPARATION PROCESSES
HYDROGEN
MEMBRANES
MATERIALS TESTING
NITROGEN
SYNTHESIS GAS
CARBON MONOXIDE
COMPARATIVE EVALUATIONS
COMPOSITE MATERIALS
EXPERIMENTAL DATA
HYDROGEN PRODUCTION
IMIDES
ORGANIC POLYMERS
PERMEABILITY
PROGRESS REPORT
SPECIFICITY
TEMPERATURE EFFECTS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DATA
DOCUMENT TYPES
ELEMENTS
EVALUATION
FLUIDS
GASES
INFORMATION
MATERIALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
TESTING
080107* - Hydrogen- Production- Coal Gasification
010404 - Coal
Lignite
& Peat- Gasification
400105 - Separation Procedures