VPSA Oxygen Generator

The VPSA cycle is very similar to the VSA except that the larger capacity requirements necessity of having two absorbers, one absorber producing oxygen and the other absorber being regenerated. This process requires a dedicated PD Blower to compress the air stream to support continuous operation and a dedicated Vacuum Brower to regenerate the absorber.

The VPSA process is more energy efficient due to the inherent continuous process and the primary reason this technology is selected for large scale high volume low pressure oxygen requirements.

VPSA Flows 5-100 tons per day

OXYSWING® VPSA Product Flow
Nm3/hr / Mtpd
Feed Flow
Nm3/hr
Estimated Power
in kW
kW/Nm3 O2
VPSA-150 150 / 4.8 1293 81 0.540
VPSA-200 200 / 7 1724 95 0.475
VPSA-350 350 / 12 3017 150 0.429
VPSA-450 450 / 15 4062 167 0.371
VPSA-500 500 / 17 4368 185 0.370
VPSA-700 700 / 24 6319 257 0.367
VPSA-1000 1000 / 34 9172 366 0.366

NOTE: Flow values are + / – 4% and Purity values are 93 % (+ / – 2%), Available discharge pressure (without Booster Compressor) 1.3 bar (abs).

NOTE: Custom sizes are available.