Gas separation: processes – With control responsive to sensed condition – Pressure sensed
Patent
1997-12-11
1999-07-27
Spitzer, Robert
Gas separation: processes
With control responsive to sensed condition
Pressure sensed
95101, 95102, 95130, 96113, 96130, 96144, B01D 53053
Patent
active
059284072
ABSTRACT:
An alternating pressure apparatus for obtaining oxygen from the air has two adsorbers to which an air blower for adsorption air and a vacuum pump stand for desorption are connected. The vacuum pump stand has two vacuum pumps in tandem. The second vacuum pump in the direction of flow is configured as a rotary piston pump with preliminary inlet cooling for the defined inflow of outside air at atmospheric pressure. The inlet of the second vacuum pump is connected to the outlet of the first vacuum pump without the use of gas cooling by water injection or by a heat exchanger. The alternating pressure apparatus operates with a desorption pressure between 300 mbar and 500 mbar.
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SGI-Prozesstechnik GmbH
Spitzer Robert
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