Patent ID: 8603220
Filing Date: 2013-12-10
Classification: B01D,F16K,Y10T

Abstract:
1. A method for the recovery of a less strongly adsorbable component from a feed gas mixture comprising a more strongly adsorbable component and the less strongly adsorbable component, wherein the method comprises: (a) providing a pressure swing adsorption system comprising (b) introducing the feed gas mixture into a first vessel and withdrawing product gas from the first vessel and through the product pipe; (c) depressurizing the first vessel by withdrawing depressurization gas from the product end of the vessel and transferring the depressurization gas to the product end of another vessel via the indexed rotatable multi-port product valve in one of the indexed rotational positions; (d) withdrawing waste gas from the feed end of the first vessel; (e) pressurizing the first vessel by introducing into the product end of the vessel a depressurization gas provided from another vessel that is undergoing step (c), wherein the gas is transferred via the indexed rotatable multi-port product valve in another of the indexed rotational positions; and (f) repeating steps (b) through (e) in a cyclic manner.