| 摘要 |
A process is provided for the separation of ethane from methane-containing feedstreams using pressure-swing adsorption wherein the adsorbent is a faujasite type of zeolitic aluminosilicate containing at least 20 equivalent percent of at least one cation species selected from the group consisting of zinc, rare earth, hydrogen, ammonium and calcium and containing not more than 80 equivalent percent of alkali metal or alkaline earth metal cations other than calcium.
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