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US 2022/0152548 A1Published application
Process for separation of hydrogen and oxygen
AssigneeSabic Global Technologies B.V.
InventorsAbdulaziz M. AL-JODAI, Nasser Ali ALDALAAN, Mubarik Ali BASHIR
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Abstract
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.
Claims20
A process for separating hydrogen and oxygen from a gas mixture comprising:
- separating the hydrogen and the oxygen at about atmospheric pressure from a feed source by contacting the gas mixture with an adsorption medium that adsorbs either of hydrogen or oxygen from the gas mixture to produce an oxygen enriched adsorption medium comprising adsorbed oxygen or a hydrogen enriched adsorption medium comprising adsorbed hydrogen;
- or
- desorbing the adsorbed oxygen or the adsorbed hydrogen by exposing the oxygen adsorption medium or the hydrogen enriched adsorption medium to vacuum conditions to form an oxygen enriched purge gas or a hydrogen enriched purge gas and a regenerated adsorption medium, and recycling the oxygen enriched purge gas or the hydrogen enriched purge gas into the gas mixture.
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.
A process for separating hydrogen and oxygen comprising:
- providing a gas mixture feed comprising oxygen and hydrogen;
- passing the gas mixture through an adsorption medium that selectively adsorbs hydrogen from the feed source producing an adsorption medium enriched in hydrogen;
- 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 recycling the hydrogen to the gas mixture feed.
The process of claim 20, wherein the adsorption medium comprises a zeolite.
Dependencies are inferred from the claim text.