PRESSURE SWING ADSORPTION APPARATUS FOR HYDROGEN PURIFICATION FROM DECOMPOSED AMMONIA GAS AND HYDROGEN PURIFICATION METHOD USING THE SAME
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United States of America Patent
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Issued Date -
Mar 28, 2024
app pub date -
Apr 11, 2022
filing date -
Dec 31, 2021
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The present disclosure relates to a pressure swing adsorption apparatus for hydrogen purification from decomposed ammonia gas and a hydrogen purification method using the same, and more particularly, the pressure swing adsorption apparatus of the present disclosure includes a plurality of adsorption towers including a pretreatment unit and a hydrogen purification unit wherein the adsorption towers of the pretreatment unit and the hydrogen purification unit are packed with different adsorbents, thereby achieving high purity hydrogen purification from mixed hydrogen gas produced after ammonia decomposition, making it easy to replace the adsorbent for ammonia removal, minimizing the likelihood that the lifetime of the adsorbent in the hydrogen purification unit is drastically reduced by a very small amount of ammonia, and actively responding to a large change in ammonia concentration in the raw material.
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