| 摘要 |
<p>A pressure swing adsorption process for the removal of hydrocarbons from a hydrogen feedstream is disclosed, which comprises: (a) passing the feedstream comprising hydrogen and at least one hydrocarbon constituent over an adsorbent. wherein the adsorbent comprises a metal organic framework (MOF) material, in an adsorption zone at a temperature and adsorption pressure sufficient to adsorb at least a portion of the hydrocarbon constituent in the feedstream and thereby generating an effluent hydrogen stream having a reduced hydrocarbon content, continuing to pass the feedstream over the adsorbent for a time until the adsorbent has substantially reached its adsorption capacity; (b) reducing the pressure in the adsorption zone to a desorption pressure and for time sufficient to desorb at least a portion of the hydrocarbon therefrom and withdrawing a desorption effluent stream having an enriched hydrocarbon content; and (c) repressurizing the adsorption zone to the adsorption pressure and repeating the steps (a) and (b).</p> |
