Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2005-01-03
2008-09-16
Greene, Jason M (Department: 1797)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C096S004000, C096S011000, C423S579000, C423S648100, C423S230000, C423S231000, C429S010000
Reexamination Certificate
active
07425231
ABSTRACT:
Method for gas purification comprising (a) obtaining a feed gas stream containing one or more contaminants selected from the group consisting of volatile metal oxy-hydroxides, volatile metal oxides, and volatile silicon hydroxide; (b) contacting the feed gas stream with a reactive solid material in a guard bed and reacting at least a portion of the contaminants with the reactive solid material to form a solid reaction product in the guard bed; and (c) withdrawing from the guard bed a purified gas stream.
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Carolan Michael Francis
Miller Christopher Francis
Air Products and Chemicals Inc.
Fernbacher John M.
Gourley Keith D.
Greene Jason M
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