CO2 Regenerative and Absorbing System

Operating Principles of CO2, Absorption Equipment

Carbon dioxide is absorbed by granular amine compound bonded to a porous resin structure. The chemical reactions are as follows: Absorption (filtration) Amine+H20 -> (Amine-H20) and ahead (Amine-H20) + CO2, r44mine-1-12CO3) Desorption (regeneration) (Amine-H2CO3) + heat1 Amine+H20 + CO2: As the absorbent becomes exhausted, the weakly bonded carbon dioxide can be desorbed by reversing the process equilibrium, or by heating the absorbent with warm air. The filter consists of two identical filter units. As one unit is filtering, the other is regenerating and vice versa. Each filtering/ CO2 absorption cycle takes 8 hours (can be modified according to customers’ requisites). CO2 probe and control units monitor the CO2 content downstream of the filter. When the CO2 absorbent becomes exhausted, filtrating unit is changed to the other unit and the first unit starts regenerating. The process control unit controls the absorption and regenerating cycles automatically, so no user actions are required.
During filtration, the butterfly (wafer) valves of the filtering unit are open, and the shelter indoor air flows through the filter unit and is then circulated back to the shelter interiors.

Technical Data -CO2: Absorption Equipment

1. 1. Dimensions — see drawings in ENCLOSURES.
   2. Total operating weight of the filter with absorbent cells Installed: Approx. 800 kg.
   3. Absorber Casing fabricated from AISI 304 Stainless Steel (Option 3161 SS).
   4. Design Pressure: Atmospheric.
   5. Absorbent: An amine compound in 0 1 mm polystyrene granules, 245 litres / each CO2 unit + Weight of absorbent in one filtering unit: 150 kg; 300 kg total
      per the two filtering units of the filter.
   6. Residence Time during CO2 absorption: 1.5 se   + CO2, Absorbent Design Temperature during CO2 absorption: 0^. – 50*C.
   7. Magnehelic zero-centre pressure gauge to indicate pressure drop.
   8. Connections / Flanges: According to customer’s specifications.  OPTION: Surface treatment of casing: Pickling.