Functionally gradient material for membrane reactors to convert methane gas into value-added products

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870683

Balachandran, Uthamalingam ^[1]; Dusek, Joseph T ^[2]; Kleefisch, Mark S ^[3]; Kobylinski, Thadeus P ^[4]

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1. Hinsdale, IL
2. Lombard, IL
3. Napersville, IL
4. Lisle, IL

A functionally gradient material for a membrane reactor for converting methane gas into value-added-products includes an outer tube of perovskite, which contacts air; an inner tube which contacts methane gas, of zirconium oxide, and a bonding layer between the perovskite and zirconium oxide layers. The bonding layer has one or more layers of a mixture of perovskite and zirconium oxide, with the layers transitioning from an excess of perovskite to an excess of zirconium oxide. The transition layers match thermal expansion coefficients and other physical properties between the two different materials.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5573737
• OSTI ID: 870683
• Country of Publication: United States
• Language: English

Related Subjects

functionally
gradient
material
membrane
reactors
convert
methane
gas
value-added
products
reactor
converting
value-added-products
outer
tube
perovskite
contacts
air
inner
zirconium
oxide
bonding
layer
layers
mixture
transitioning
excess
transition
match
thermal
expansion
coefficients
physical
properties
materials
methane gas
membrane reactor
oxide layers
transition layer
expansion coefficient
physical properties
inner tube
thermal expansion
oxide layer
outer tube
zirconium oxide
membrane reactors
bonding layer
match thermal
converting methane
expansion coefficients
ethane gas
gradient material
functionally gradient
value-added product
contacts air
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