Deaerated water skid
Oxydrop
Deaerated brewing water from a packed column, stripped with CO₂ at atmospheric pressure. No vacuum, no heat, no membranes.
- Capacity
- 5 hl/h
- Residual O₂
- < 20 ppb
- less if needed
- CO₂ use
- 7.6–13.9 NL/min
How it works
- Water falls through a tall packed column at a fixed, regulated flow.
- CO₂ rises against it and carries the dissolved oxygen out through the vent.
- The sump and pump deliver the deaerated water to your buffer tank.
- The PLC runs production and CIP, and brings the skid to a safe stop.
What deaerated water is for
Everywhere beer or product would otherwise meet air.
Filling lines before production
Lines and fillers primed with deaerated water instead of a CO₂ purge, so the first beer through picks up no oxygen.
Pushing beer out after production
The last beer leaves the line pushed by water that carries no oxygen into it.
Separator seals
Flushing the hydraulic seals of a centrifuge, so no oxygen is drawn into the beer during separation.
Blending high-gravity beer
Diluting to the final alcohol content with water at the beer's own oxygen level. Routine in industrial breweries; craft is getting there.
Soft drinks and RTDs
The main ingredient, deaerated so the product does not oxidise.
| Water flow | 5.4 hl/h fixed (4.98–5.82 hl/h) |
|---|---|
| O₂ in, air-saturated | ≈ 8–11 ppm (30–10 °C) |
| O₂ out | < 20 ppb, less if needed |
| CO₂ consumption | ≈ 7.6 NL/min at 30 °C, 13.9 NL/min at 10 °C (≈ 1.65 kg/h) |
| CO₂ per hl of water | ≈ 85–155 NL/hl (≈ 0.17–0.31 kg/hl) |
| Delivery | Buffer tank up to 1.0 barg top pressure at 2 m level |
| CIP | Up to 80 °C, NaOH or acid up to 2 % |
| Materials | Stainless 304L and 316L, EPDM seals |
| Footprint | ≈ 0.9 × 0.9 m |
| Height | ≈ 5.1 m |
| Weight | ≈ 155 kg empty, ≈ 185 kg running |
Design values for the pilot system. Product sheet (PDF, 2 pages)
| Water | 2.4–6 barg, 10–30 °C |
|---|---|
| CO₂ | Food grade, cylinder or bulk line |
| Air | 6 bar, clean, dry, oil-free |
| Power | 3 × 400 V + N + PE, 50 Hz |
| Site | Floor drain, vent to outside, column bracing |
Questions
What is deaerated water used for in a brewery?
Filling lines before production and pushing beer out after it, flushing separator seals, blending high-gravity beer to its final strength, and as the base of soft drinks and RTDs: everywhere beer or product would otherwise meet air. Oxydrop delivers it at < 20 ppb O₂ to a buffer tank.
How does Oxydrop remove oxygen without vacuum, heat or membranes?
Water falls through a packed column while CO₂ rises against it at atmospheric pressure. The CO₂ carries the dissolved oxygen out through the vent. No vacuum pump, no heater, no consumable in the path.
Why a CO₂ stripping column?
It works at atmospheric pressure with one 0.55 kW pump, so the energy per hl is low. It needs no consumables: the only thing used is CO₂, and there is always CO₂ in a brewery. And it stands on 0.9 × 0.9 m of floor.
How much CO₂ does it use?
About 7.6 NL/min at 30 °C water and 13.9 NL/min at 10 °C, or roughly 85–155 NL per hl of water (0.17–0.31 kg/hl). Colder water holds more oxygen and needs more gas.
Can it be cleaned in place?
Yes. CIP up to 80 °C with NaOH or acid up to 2 %, run from the skid's own PLC.
Is it a proven system?
Oxydrop is a pilot design. The figures on this page are design values from simulation and supplier data, not measurements from an installed unit.
Need deaerated water?
One size for now. Ask whether it fits your brewhouse.