Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2008-04-30
2010-11-16
Chiesa, Richard L (Department: 1797)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C095S073000, C095S078000, C096S008000, C096S009000, C096S060000, C096S073000, C096S074000, C096S083000
Reexamination Certificate
active
07833314
ABSTRACT:
Purification method and apparatus for purifying a gas stream by oxygen removal. The apparatus includes primary and secondary oxygen separation zones and tubular electrically driven oxygen separation elements. There are more elements in the primary zone than the secondary zone so that low concentrations of oxygen can be obtained in a purified stream and turbulent flow conditions can also be obtained that will permit purification to very low levels. In addition, a junction is provided to connect the tubular separation elements to metallic elements such as manifolds.
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Ciacchi, F. T. et al., “Tubular zirconia-yttria electrolyte membrane technology for oxygen separation”, Solid State Ionics 152-153, 2002, pp. 763-768.
Lane Jonathan Andrew
Reed David M.
Chiesa Richard L
Praxair Technology Inc.
Rosenblum David M.
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