Method of separating and selectively removing hydrogen contaminant from process streams
AssigneeE. I. Du Pont de Nemours and Company
InventorsDavid Richard Corbin, Vinci Martinez Felix
Life of this patent
Estimating the term…
Abstract
A method of separating and selectively removing hydrogen contaminant from hydrogen-containing product and by-product process streams is disclosed. Separation and removal occur when certain Cd-exchanged zeolite rho compositions are placed in contact with a hydrogen-containing process stream. A hydrogen-encapsulated zeolite rho composition is formed by practice of the method.
Claims14
A method of separating and removing hydrogen from a hydrogen-containing process stream, wherein the hydrogen is admixed in the stream with at least one other gas member, comprising contacting a hydrogen-containing process stream containing at least one other gas member with a Cd-exchanged zeolite rho composition of the formula:
- CdwM1xM2yM3zSiaAlbO96
- wherein:
- M1, M2 and M3 are each selected from the group consisting of Li, Zn, Rb, Sr, H, Mg, Ba, NH4, Ca, K, Na and Cs;
- w is from about 1 to about 6;
- x, y and z are each 0-6;
- a is 36-48;
- and
- b is 0-12, with the proviso that a+b=48.
Dependencies are inferred from the claim text.