CO2 Polishing Filter - Union

The polishing filter is intended as a final, valuable safeguard to remove trace amounts of impurities that might be present in the carbon dioxide gas.

The CO₂ gas from the CO₂ evaporator is led to the CO₂ Polishing Filter inlet manifold through a bypass shutoff valve system to the filter bed. Before being sent to the point of consumption, the CO₂ gas passes a particle filter for removal of possible dust residues originating from the activated carbon filter bed.

The Union Engineering activated carbon filter bed consists of a special mix of activated carbon. It is specifically able to remove peaks of:

• Oxygenates (alcohol, aldehydes, ketones)
• Hydrocarbons (benzene, oil)
• Nitrogen dioxide
• Various compounds of sulphur

The particle filter installed after the Polishing Filter has a rating of 1 micron ensuring an absolutely dust-free CO₂ gas being sent to the point of consumption in the bottling company.

The Polishing Filter is delivered as a complete pre-packed skid mounted unit with only inlet and outlet connections to be made upon arrival on site.