Energy recovering pressure balance scheme for a combination pres

Details Energy recovering pressure balance scheme for a combination pres Energy recovering pressure balance scheme for a combination pres

1993-05-28

1994-10-11

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95130, 96109, 96130, 96133, B01D 5304

Patent

active

053543610

ABSTRACT:
A pressure swing adsorber system includes a pneumatically driven booster compressor to increase the pressure of the output product gas. A pair of inlet valves controls feed air flow to the sieve beds and the drive cylinder of the booster compressor and are cycled so that one valve opens to pressurize one sieve bed before the other valve closes to allow the other sieve bed vent to atmosphere. During the time that both valves are open, the pressure in the two sieve beds and on opposite sides of the drive cylinder equalize and a portion of the gas in the pressurized sieve bed and drive cylinder side is captured rather than being vented to ambient. System efficiency is increased by selecting whether captured gas from the last pressurized sieve bed or drive cylinder side reaches the next to be pressurized sieve bed first.

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