Process for purifying hydrogen gas

Details Process for purifying hydrogen gas Process for purifying hydrogen gas

1995-01-17

1996-02-06

Spitzer, Robert

Gas separation: processes

Solid sorption

Inorganic gas or liquid particle sorbed

95117, 95130, 95138, 95139, 95140, 95143, B01D 5304

Patent

active

054893275

ABSTRACT:
There is diclosed a process for purifying hydrogen gas which comprises removing impurities such as nitrogen, oxygen, methane, carbon monoxide, carbon dioxide and moisture contained in a crude hydrogen gas by bringing the crude hydrogen gas into contact under heating with a hydride of a zirconium alloy such as Zr-V, Zr-V-Ni, Zr-V-Cr, Zr-V-Co, Zr-V-Fe, Zr-V-Cu, Zr-V-Ni-Cr, Zr-V-Ni-Co and Zr-V-Cr-Fe. By virtue of using the above Zr alloy hydride, the process enables highly advanced purification of crude hydrogen gas by removing such impurities as above to a level as low as 1 ppb or less in high safety and efficiency at low installation and running costs.

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patent: 4976938 (1990-12-01), Knize et al.
"Removal Of Nitrogen And Methane From Hydrogen By Metal Getters", H. Heimbach et al, Fusion Technology (Commission Eur. Communities--Eur 9183), vol. 1, 1984, pp. 421-426.

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