Patent Number: 6,183,538

Title: Pressure swing adsorption gas flow control method and system

Abstract: The flow of gas between two vessels, each of which undergoes cyclic changes in gas pressure, is controlled by two check valves installed in parallel between the vessels. The first check valve allows gas to flow from the first vessel to the second vessel when the differential pressure between the vessels exceeds a first value, and the second check valve allows gas to flow from the second vessel to the first vessel when the differential pressure between the vessels exceeds a second value. The gas flow control method is particularly useful in pressure swing adsorption processes.

Inventors: Naheiri; Tarik (Bath, PA)

Assignee: Air Products and Chemicals, Inc.

International Classification: B01D 53/047 (20060101); B01D 53/053 (20060101); B01D 053/053 ()

Expiration Date: 02/06/2018