Method And System For Purifying Hydrogen-Containing Gas
AssigneesHyundai Motor Company, Kia Corporation
InventorJae Uk Shin
Life of this patent
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Abstract
A method for purifying hydrogen-containing gas is introduced. The method may comprise producing hydrogen by removing at least a portion of moisture from hydrogen-containing gas, wherein the removed moisture is adsorbed by an adsorbent. The method may further comprise reducing partial pressure of the moisture adsorbed by the adsorbent, increasing a temperature of the adsorbent after reducing the partial pressure, and regenerating the adsorbent based on increasing the temperature. The method may also include cooling the regenerated adsorbent and supplying the cooled adsorbent to at least one adsorption tower among a plurality of towers.
Claims20
A method for purifying hydrogen-containing gas, the method comprising:
- producing hydrogen by removing at least a portion of moisture from hydrogen-containing gas, wherein the removed moisture is adsorbed by an adsorbent;
- reducing partial pressure of the moisture adsorbed by the adsorbent;
- after the reducing of the partial pressure, increasing a temperature of the adsorbent;
- regenerating, based on the increasing the temperature, the adsorbent;
- cooling the regenerated adsorbent;
- and
- supplying the cooled adsorbent to at least one adsorption tower among a plurality of towers.
A system for purifying hydrogen-containing gas, the system comprising:
- a plurality of towers configured to swing between adsorption mode of operation and desorption mode of operation, wherein at least one first tower of the plurality of towers operates in the adsorption mode for removing at least a portion of moisture from the hydrogen-containing gas, wherein the removed moisture is adsorbed by an adsorbent, and wherein at least one second tower of the plurality of towers operates in the desorption mode for regenerating a second adsorbent;
- a heater connected to the at least one second tower for increasing a temperature of the second adsorbent to release the adsorbed moisture from the second adsorbent;
- a vacuum pump connected to the at least one second tower for reducing partial pressure of the moisture in the second adsorbent;
- and
- a plurality of valves configured to control the swing between the adsorption mode of operation and the desorption mode of operation.
Dependencies are inferred from the claim text.