We started using larger columns with 750g zeolite capacity and were able to produce 2 L/min of 80% oxygen.
- 1-7: 2-way solenoid valve
- Zeolite bed: each ca. 750g LiX
- Feed: 5 bar dry air
- Column housing = Reverse Osmosis Membrane housing
- 750g LiX in each column
- Valves: Festo, Switching controller: Aduino
- 80% oxygen in outlet stream (2 l/min) using pressurised dry air (6 bar) in input.
- Switching cycle: 4.5s pressurizing/blowdown, 0.4s feeding, 1.3s equilibration