Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1995-02-10
1996-09-24
Lewis, Michael
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423235, 423247, 4236481, 4236582, C01B 300, B01D 5354, B01D 5362
Patent
active
055588441
ABSTRACT:
A process is provided which is capable of removing impurities from an impurity-containing hydrogen gas without generating methane. A bed of particulate nickel in an amount of at least 5% by weight as elemental nickel at a temperature of from 0.degree. C. to 50.degree. C. removes all impurities except nitrogen. Then a bed of getter material, a zirconium, vanadium and iron alloy at a temperature of from 200.degree. C. to 500.degree. C. removes the nitrogen impurity thus producing purified hydrogen with an impurity content of less that 20 ppb. A purifier for carrying out the process is also described.
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Lorimer D'Arcy
Succi Marco
DiMauro Peter T.
Lewis Michael
SAES Getters S.p.A.
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