Gas Absorption Unit Model TH 082U

▪ separating a CO2/air mixture by absorption in counter-flow
▪ Glass column with packed bed
▪ safe operation due to use of water as the solvent and non-hazardous gases

▪ regeneration of solvent by vacuum
▪ gas analysis with hand-held measuring unit

Item Description

Sci-tech Gas Absorption Unit Model TH 082U is used to remove one or more gaseous components from a gas flow using a solvent.
First of all, a CO2 and air gas mixture is produced. It is possible to adjust the mixing ratio usingvalves. The flow rates of the gas components are displayed.
A compressor delivers the gas mixture into the lower section of the absorption column. In the column, part of the CO2 is separated in the counter-flow with the solvent. Water is used as the solvent. The CO2 is absorbed by the downward flowing water. To separate the absorbed CO2, the charged water is then fed from the lower section of the absorption column into a desorption column. As the pressure isreduced and the temperature is increased, the solubility of the CO2 falls. A heater heats the water. Awater jet pump generates negative pressure in the desorption column and causes the CO2 gas to be emitted from the water. A pump then delivers the regenerated solvent back into the absorption

Technical Specifications

▪ separation of CO2/air mixture by absorption in counter-flow with water
▪ production of gas mixture using CO2 from compressed gas cylinder and ambient air
▪ adjustment of mixing ratio using valves
▪ compressor for delivering the gas mixture into the absorption column
▪ Glass absorption column (packed bed) and desorption column
▪ continuous solvent regeneration in circuit with desorption column under vacuum

▪ 1 pump for desorption column and 1 pump for returning solvent to absorption column
▪ water temperature control with heater and refrigeration system

Technical Specifications
Absorption column
▪ height: 2x 750mm, internal diameter: 80mm
Desorption column
▪ height: 750mm, internal diameter: 80mm
2 pumps (absorption/desorption)
▪ max. flow rate: 17,5L/min
▪ max. head: 47m
1 pump (cooling)
▪ max. flow rate: 29L/min
▪ max. head: 1,4m
▪ max. positive pressure: 2bar
▪ max. flow rate: 39L/min
Measuring ranges
▪ flow rate:
▪ air: 0,2…2,4Nm³/h
▪ solvent: 50…600L/h

▪ CO2: 0,4…5,4L/min
▪ temperature: 1x 0…80°C, 2x 0…60°C
▪ pressure: 1x 0…2,5bar, 1x -1…0,6bar
▪ differential pressure: 2x 0…250mmWC
▪ CO2-content: 0…100vol%