| 摘要 |
<p>In a process for the separation of at least two crude gas streams of differing composition in a single pressure swing adsorption plant operated with several cyclically reversible adsorbers passing respectively through an adsorption phase, and a regenerating phase, comprising stages of expansion, purging, and pressure buildup, the improvement wherein said pressure swing adsorption plant comprises a plurality of groups of adsorbers, said groups communicating only via outlet sides thereof, and wherein each crude gas stream is associated with a single group of adsorbers through which the respective crude gas stream is conducted in a cyclically reversible fashion and separated therein, and that expansion gas is obtained at least during one stage of the expansion in one group of adsorbers is conducted into an adsorber of another group, the latter adsorber being in a regenerating phase.</p> |
