PSA process for purifying hydrogen

摘要

PSA for obtaining pure hydrogen from gaseous mixtures containing (other than hydrogen) carbon monoxide and/or nitrogen comprises use of a faujasite adsorbent with a silicon/aluminium ratio of 1-3, in which at least 85% of the alumina tetrahedra in the crystal lattice are associated with lithium and carbon cations.The ratio of lithium to lithium + calcium is at least 70%.