Purifying hydrogen gas from synthetic ammonia

2019-07-01View Original

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Ammonia synthesis purification employs two-stage vacuum pressure swing adsorption to remove primarily carbon dioxide and carbon monoxide, along with small amounts of hydrogen sulfide and methane. The adsorbents used include alumina, silica gel, activated carbon, 5A zeolite, and adsorbents specifically designed for carbon monoxide removal. What should be the ideal range for the adsorption pressure? The system container can withstand a maximum pressure of 2.0 MPa. Is there a specification for the vacuum level? It has been in use for about eight years now, and the vacuum level has decreased slightly. What could be the cause of this? Thank you! !

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Purifying hydrogen gas from synthetic ammonia

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