Processes and apparatuses for providing a hydrogen stream

A process for producing a hydrogen stream, the process comprising:

• passing an effluent stream from a reaction zone to a separation zone, the reaction zone comprising an electrolyzer, the effluent stream comprising hydrogen and oxygen, and the separation zone comprising a plurality of vessels containing an adsorbent configured to selectively adsorb oxygen;
• selectively adsorbing oxygen from the effluent stream with the adsorbent in the separation zone and providing a purified hydrogen stream;
• and,
• passing at least a portion of the purified hydrogen stream to a vessel from the plurality vessels of the separation zone containing spent adsorbent to regenerate the spent adsorbent and desorb oxygen as water.

An apparatus for producing a hydrogen stream, the apparatus comprising:

• a reaction zone comprising a reactor and configured to produce an effluent stream comprising hydrogen and oxygen;
• a separation zone configured to receive the effluent stream and provide a purified hydrogen stream, the separation zone comprising plurality of vessels containing an adsorbent configured to selectively adsorb oxygen;
• and,
• a line configured to pass at least a portion of the purified hydrogen stream to a vessel from the plurality of vessels of the separation zone containing spent adsorbent to regenerate the spent adsorbent and desorb oxygen as water.