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AssigneeKorean Institute of Energy Research
InventorsSoon Haeng Cho, Sodankoor Garadi Thirumaleshwara Bhat, Sang Sup Han, Jong Ho Park, Jong Nam Kim, Heon Jung
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Disclosed are a pressure swing adsorption apparatus for hydrogen purification and a hydrogen purification method using the same. The pressure swing adsorption apparatus for hydrogen purification includes a plurality of adsorption columns connected with a feed supply pipe, a hydrogen storage tank for collecting purified hydrogen from the adsorption columns, and valves for opening or closing a plurality of pipes connected to the respective adsorption columns, and the adsorption columns are packed with adsorbent beds of active alumina or silica gel, activated carbon, zeolite 13X, zeolite 5A, and a carbon monoxide-selective adsorbent other than the zeolite 5A, in order to remove carbon dioxide, methane, and carbon monoxide from a hydrogen-containing gas mixture supplied through the feed supply pipe, and the content of carbon monoxide in the discharged hydrogen is minimized through sequential adsorption on the adsorbents in the adsorption columns. The content of carbon monoxide in the purified hydrogen product can be decreased to 10 ppm or less, thus facilitating the production of highly pure hydrogen products.
A pressure swing adsorption apparatus, comprising a plurality of adsorption columns connected with a feed supply pipe, a hydrogen storage tank for collecting purified hydrogen from the adsorption columns, and valves for opening or closing a plurality of pipes respectively connected to the adsorption columns,
A pressure swing adsorption apparatus for obtaining a highly pure hydrogen product through continuous purification using adsorption columns in which active alumina or silica gel, activated carbon, zeolite 13X, zeolite 5A, and a cuprous chloride-impregnated alumina adsorbent are sequentially disposed in order to adsorb impurities from a hydrogen-containing gas mixture.
A method of purifying hydrogen using a pressure swing adsorption apparatus, comprising:
A method of purifying hydrogen using a pressure swing adsorption apparatus composed of two or more adsorption columns in which a plurality of adsorbents is sequentially disposed and which are disposed parallel to each other, the method comprising sequentially passing a hydrogen-containing gas mixture including impurities of water, carbon dioxide, methane, and carbon monoxide through active alumina or silica gel, activated carbon, zeolite 13X, zeolite 5A, and a carbon monoxide-selective adsorbent other than the zeolite 5A, which are disposed in the adsorption columns, so that the hydrogen-containing gas mixture is purified to highly pure hydrogen containing less than 10 ppm carbon monoxide.
Dependencies are inferred from the claim text.