1. The unit should be capable of experimenting on the absorption of CO2 from air and CO2 mixtures using sodium hydroxide solution.
2. The unit should be capable of experimenting on the determination of the CO2 saturation point in NaOH solution and the time to reach saturation.
3. The unit should be capable of experimenting on the effect of CO2 compositions,air, and liquid flow rates on the absorption efficiency.
4. The unit should be capable of analyzing CO2 compositions in both gas and liquid.
5. The unit shoud be capable of studying on the hydrodynamics of a packed column (pressure drop).
6. The unit should be capable of experimenting on the determination of the loading and flooding points of the column.

Absorption Column

1. Packed columns filled with Raschig rings.
2. Approximate minimum diameter : 80 mm.
3. Approximate minimum effective packing height : 1.5 m.
4. Material : Borosilicate glass.
5. Packings : 10 mm glass Raschig rings.  
6. Absorption column must comes with ports for pressure drop measurements.

Water Tank

1. Rectangular tank with removable top cover and level sight tube.
2. Minimum capacity : 50 liters.
3. Material : Stainless steel.
4. Low level switch for protection of centrifugal pump from dry run.

Circulation Pump

1. Type : Magnetic drive sealless centrifugal.
2. Material : Polypropylene (PP).
3. Max. delivery : 14.0 LPM.
4. Volts : 24 Vdc.
5. Amps : 5.0 A.
6. Maximum pressure : 45 psi.
7. Maximum flow rate in the system : 11 LPM.

Instrumentations

1. Flow rates instrumentations:
2. 1 1 unit of Air flowmeter : Range between 20 LPM to 180 LPM.  
3. 2 1 unit of CO2 flowmeter : Range between 2 LPM to 20 LPM.
4. 3 1 unit of water flowmeter: Range between 1 LPM to 10 LPM. 
5. 1.5.2 Differential pressure: 1 unit of differential pressure transmitter. 
6. CO2 concentration: 2 units of inline CO2 gas sensor. 

Air Compressor Unit