CO₂ Absorbers & Moisture Absorbers – Tank Vent Air Conditioning Solutions

Ae Wasser supplies specialized CO₂ absorbers and moisture absorbers (desiccant pots) designed to condition incoming air during tank breathing. These systems protect sensitive stored media by preventing contamination from carbon dioxide and moisture during tank filling and emptying operations.

CO₂ Absorbers – Protection of Demineralized Water Quality

Function & Working Principle

CO₂ absorbers are installed to remove carbon dioxide from ambient air entering storage tanks during filling or emptying. When tanks breathe, exhaust or intake air may contain CO₂, which can dissolve into stored liquids and adversely affect their quality.

For demineralized (DM) water storage tanks, controlling dissolved CO₂ (ppm level) is critical. CO₂ ingress increases conductivity and degrades water quality, negatively impacting downstream steam generation systems.

To prevent this, CO₂ absorbers are installed on the tank roof air vent nozzle, where incoming air passes through the absorber media, removing CO₂ before it enters the tank.

Key Applications

Demineralized Water Storage Tanks
Power Plants: Steam and combined‑cycle power plants
Oil & Gas Utilities: DM water supply systems for steam generation

Key Benefits

Maintains low CO₂ ppm levels in demineralized water
Preserves water quality for high‑pressure boiler systems
Reduces corrosion and scaling risks in downstream equipment

Moisture Absorbers (Desiccant Pots) – Moisture Control for Corrosive Media

Function & Working Principle

Moisture absorbers, also known as desiccant pots, are designed to remove water vapor from atmospheric air entering tanks during air inbreathing. By absorbing moisture, they prevent condensation and dilution of sensitive stored liquids.

The primary industrial application is concentrated sulfuric acid (98%) storage tanks. During air inbreathing, humid air can introduce moisture into the tank, diluting the acid. Sulfuric acid concentrations below 96% become highly corrosive to carbon steel, significantly increasing the risk of tank damage.

To avoid this, moisture absorbers are installed on the tank roof vent nozzle, ensuring that incoming air is dried before contact with the tank contents.

Key Applications