Pressure swing adsorption process and system

Details Pressure swing adsorption process and system Pressure swing adsorption process and system

B - Operations, Transporting

01

D

183/24

B01D 53/04 (2006.01) B01D 53/047 (2006.01)

Patent

CA 1174181

IMPROVED PRESSURE SWING ADSORPTION PROCESS AND SYSTEM Abstract of the Disclosure Bed utilization and product recovery are enhanced in pressure swing absorption operations, especially for high pressure applications, by terminating cocurrent depressurization at a relatively high intermediate pressure level. Additional void space gas is released from each main adsorption bed by partial countercurrent depressurization prior to conventional countercurrent blowdown. Such additional gas is passed to a satellite bed adapted for simultaneous release of gas from its discharge end, thereby cocurrently depressurizing said satellite bed from said intermediate pressure level, with the thus- released gas being passed to the discharge end of another satellite bed or beds and/or another main bed or beds for pressure equalization and/or purging purposes. The satellite bed is one of a satellite group of adsorption beds containing a lesser number and smaller beds than in said main bed system, the satellite beds not being operated above said intermediate pressure level. S P E C I F I C A T I O N D-13328

413534

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