Process for the purification of permanent gases using chabazite

Details Process for the purification of permanent gases using chabazite Process for the purification of permanent gases using chabazite

1987-05-22

1988-03-22

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, 55 75, B01D 5304

Patent

active

047325844

ABSTRACT:
Thoroughly dehydrated, certain forms of chabazite have improved utility for purifying bulk gases. Compared to conventional molecular sieves, these chabazites have improved properties for removing low levels of gas contaminants having larger heats of adsorption than the bulk component. Also, the small pore chabazite can remove weakly interacting adsorbates from bulk gases having kinetic diameters which exceed that of the pore opening. This discovery of the intrinsic properties of polyvalent chabazites expands the range of contaminant gases which can be removed from bulk gases economically using standard adsorption processes, e.g. using these adsorbents it is possible to remove trace nitrogen from argon.

REFERENCES:
Donald W. Breck, Zeolite Molecular Sieves, 1974, John Wiley & Sons, pp. 107-110, 139, 212, 432, 605, 617, 637, 638, 651, 653, 657, 665-668, 688.

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