Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Molecular oxygen or ozone component
Patent
1996-09-30
2000-09-05
Dunn, Tom
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Molecular oxygen or ozone component
423247, 423248, 423262, B01D 5346, B01D 5362
Patent
active
06113869&
ABSTRACT:
An argon gas stream containing hydrogen, carbon monoxide, water vapor, oxygen carbon dioxide, nitrogen and methane is purified by drying the gas stream with a desiccant, oxidizing the hydrogen and carbon dioxide to water vapor and carbon dioxide by contact with oxidizing catalysts in the presence of excess oxygen, removing the water vapor and carbon dioxide from the gas stream by adsorption, removing excess oxygen by chemisorption at elevated temperature and removing the nitrogen and methane by adsorption at cryogenic temperature. Alternatively, excess oxygen is removed from the gas stream by adsorption at a cryogenic temperature.
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Jain Ravi
Tseng James K.
DiMauro Peter
Dunn Tom
Pace Salvatore P.
The BOC Group Inc.
Von Neida Philip H.
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