Gas Absorption Column Manufacturer,Supplier and Exporter in India
Product Code : EL-TWL-9108
Jlab Export is a leading Gas Absorption Column Manufacturer,and suppliers in India
Oxygen from air is absorbed into a falling film of water in this gas absorption unit. Nitrogen bubbled through a deoxygenating column first removes oxygen from the water. The water then flows as a film down a gimbal-mounted glass column, against air pumped upward. Probes at the absorber inlet and outlet measure the dissolved oxygen, so the transfer rate can be worked out.
Specifications
| Absorption column | Glass wetted wall column, gimbal mounted for vertical setting |
| Deoxygenating column | Similar size, beside the absorber, water sparged with nitrogen |
| Oxygen measurement | Oxygen analyser with probes in two housings at the absorber water inlet and outlet |
| Air supply | Integral diaphragm air pump into the column base |
| Water circuit | Storage tank at the rear, pumps at the base, water recycled to the deoxygenator |
| Control console | Flow meters, pump controls and oxygen analyser |
| Frame | Floor-standing painted steel framework |
| Also studied | Pressure differential against air flow at set water flows, flooding point, CO2 absorption into caustic soda |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Oxygen Transfer Experiments
Students set a water flow and an air flow, wait for steady readings and note the dissolved oxygen in and out of the wetted wall column. From the oxygen picked up, the water flow and the wetted area worked out from the column size, they calculate the liquid-side mass transfer coefficient. Repeating at several water rates shows how the coefficient changes with film flow. Water temperature, which sets oxygen solubility, is checked with a Digital Stem Thermometer.
A second run raises the air flow at a fixed water rate and records the pressure differential across the column until the flooding point is reached. The unit also studies carbon dioxide absorption from an air and CO2 mixture into caustic soda solution. The solution is then titrated from a Burette to find how much CO2 was taken up.
Frequently Asked Questions
What is a wetted wall column?
It is a vertical tube with liquid running down the inside wall as a thin film while gas moves through the centre. The film area follows from the tube size, so it gives clean mass transfer data without the uncertain contact area of packing.
Why is the water deoxygenated first?
Water from the tank already holds oxygen from the air. Sparging it with nitrogen in the deoxygenating column strips most of that oxygen out. The absorber then starts with a large driving force, and the rise in dissolved oxygen is easy to measure.
Why is the column gimbal mounted?
A wetted wall column must stand truly vertical, or the film runs thicker down one side and the area is no longer even. The gimbal mounting lets the column be set vertical before each run.
Is the water reused?
Yes. After the column it returns to the storage tank at the rear and is pumped to the deoxygenator again, so one fill serves run after run. The pumps for the deoxygenator and the absorber sit at the base of the frame.
Other Mass Transfer Units
- Absorption in Packed Column (glass packed bed, pressure drop and stripping)
- Gas-Liquid Absorption Column
- Vapor Liquid Equilibrium Apparatus
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Last updated: 6 November 2026
