Process for separation of hydrogen and oxygen
Embodiments of the invention are directed to methods, processes, and systems for safely and reliably purifying hydrogen from a gas mixture containing hydrogen and oxygen.
1. A process for separating hydrogen and oxygen from a gas mixture comprising:
separating the hydrogen and the oxygen at about atmospheric pressure by passing the feed source through an adsorption medium comprising a carbon molecular sieve that selectively adsorbs hydrogen from the feed source producing an enriched oxygen product gas and an adsorption medium enriched in hydrogen; and
desorbing the adsorbed hydrogen by exposing the hydrogen enriched adsorption medium to a vacuum forming a hydrogen enriched purge gas and a regenerated adsorption medium.
2. A process for separating hydrogen and oxygen comprising:
providing a gas mixture feed comprising oxygen and hydrogen;
passing the gas mixture feed through an adsorption medium that selectively adsorbs hydrogen from the gas mixture feed producing a hydrogen enriched adsorption medium;
desorbing the adsorbed hydrogen by exposing the hydrogen enriched adsorption medium to a vacuum forming a hydrogen enriched purge gas and a regenerated adsorption medium, and
injecting a hydrogen product gas to the gas mixture feed.
3. The process of claim 1 , wherein the adsorption medium further comprises a zeolite.
4. The process of claim 1 , wherein the adsorption process is performed at 15 to 60° C.
5. The process of claim 1 , wherein the desorption process is performed at about 15 to 60° C.
6. The process of claim 1 , wherein the adsorption process is performed at a pressure of about 0.8 to 1.2 bar.
7. The process of claim 1 , wherein the adsorption selectively adsorbs hydrogen at about atmospheric pressure and desorbs hydrogen at a pressure below 0.5 bar.
8. The process of claim 1 , wherein the adsorption medium further comprises a zeolite.
9. The process of claim 8 , wherein the zeolite is a 5 angstrom zeolite.
10. The process of claim 1 , wherein the adsorption medium further comprises a binder.
11. The process of claim 8 , wherein the adsorption medium further comprises a binder.
12. The process of claim 2 , wherein the adsorption medium comprises a zeolite.
13. The process of claim 2 , wherein the adsorption process is performed at 15 to 60° C.
14. The process of claim 2 , wherein the desorption process is performed at about 15 to 60° C.
15. The process of claim 2 , wherein the adsorption process is performed at a pressure of about 0.8 to 1.2 bar.
16. The process of claim 2 , wherein the adsorption selectively adsorbs hydrogen at about atmospheric pressure and desorbs hydrogen at a pressure below 0.5 bar.
17. The process of claim 14 , wherein the adsorption medium comprises a zeolite.
18. The process of claim 17 , wherein the zeolite is a 5 angstrom zeolite.
19. The process of claim 2 , wherein the adsorption medium further comprises a binder.
20. The process of claim 2 , wherein the desorption process is performed at about 60° C.