초록 ▼

A pressure swing adsorption process conducted with plural cyclically reversible adsorbers, each of the adsorbers undergoing identical switching cycles. The switching cycles include sequentially at least one adsorption phase, at least two expansion phases, at least one desorption phase employing a pu

A pressure swing adsorption process conducted with plural cyclically reversible adsorbers, each of the adsorbers undergoing identical switching cycles. The switching cycles include sequentially at least one adsorption phase, at least two expansion phases, at least one desorption phase employing a purge gas which is foreign and inert relative to the material adsorbed in the adsorbent phase, a displacement phase employing a gas obtained from an expansion phase of one of the adsorbers to displace the purge gas, and at least one pressure build-up phase.

대표청구항 ▼

In a pressure swing adsorption process for the purification or separation of gaseous mixtures, using plural, cyclically reversible adsorbers, each of which passes through identical switching cycles, wherein each switching cycle comprises sequentially at least one adsorption phase, two expansion phas

In a pressure swing adsorption process for the purification or separation of gaseous mixtures, using plural, cyclically reversible adsorbers, each of which passes through identical switching cycles, wherein each switching cycle comprises sequentially at least one adsorption phase, two expansion phases, a desporption phase, and a pressure buildup phase, the improvement comprising effecting desorption by purging with a foreign gas, following the desorption with a displacement phase, and conducting the displacement of the foreign gas with a gas or gaseous mixture discharged during an expansion phase.