The PP absorber produced by Xinda Chemical brand is specially designed for the treatment of corrosive gases in the chemical, pharmaceutical and other industries. This equipment is made of polypropylene or graphite modified polypropylene material and has excellent resistance to various strong corrosive gases such as hydrochloric acid, sulfur dioxide and ammonia.Its core advantage lies in the "falling film" absorption principle. The absorbent liquid flows downward in a thin film on the inner wall of the vertical tube, fully contacting with the gas and carrying out mass transfer reaction. At the same time, the cooling water is passed outside the tube to remove the reaction heat, so as to achieve high absorption efficiency and stability.
Compared with traditional graphite or metal absorbers, it combines the advantages of polypropylene such as light weight, corrosion resistance and no scaling, as well as the improved thermal conductivity after graphite modification, and the equipment is more durable and the maintenance cost is lower.Whether for the production of hydrochloric acid, hydrofluoric acid and other products, or the treatment of various process exhaust gases, as a professional manufacturer, we can provide from standard models to fully customized solutions according to your specific gas composition, concentration and treatment volume.
Our PP absorber is a mass transfer device with polypropylene (PP) as the core material. It is mainly used in the solute transfer process between gas and liquid. Thanks to the corrosion resistance, lightweight and structural design advantages of polypropylene material, it is widely applied in the chemical, environmental protection, pharmaceutical and other industries. Its core function is to achieve the absorption and purification of harmful components in the gas or the recovery of useful substances through gas-liquid contact. Typical equipment includes PP tubular falling film absorbers.
|
Step |
Process Stage |
Description |
|
1. |
Gas Flow |
The gas to be treated enters from the bottom of the equipment and flows upward uniformly through the distributor. |
|
2. |
Liquid Film Formation |
The absorbent liquid is injected from the top and spreads downward along the inner wall of the tube bundle, forming a continuous liquid film. |
|
3. |
Gas-Liquid Mass Transfer |
Solutes in the gas (e.g., HCl, SO₂, NH₃, etc.) diffuse into the liquid film and are absorbed or neutralized. |
|
4. |
Tail Gas Treatment |
Unabsorbed gas is discharged from the top of the equipment and can be directed to further treatment systems. |
|
5. |
Absorbent Liquid Circulation/Replenishment |
The liquid collection system recovers the rich liquid for further processing while replenishing fresh absorbent. |
The basic structure of a PP absorber includes components such as a distributor, a shell, tubes (or falling film modules), a liquid collector, etc. Some devices also integrate a heat exchanger body to enhance mass transfer efficiency. Taking the PP tubular falling film absorber as an example, its structural features are as follows:
Distributor: Evenly disperse the gas onto the surface of the absorption liquid to ensure full contact between the gas and the liquid.
Tube/falling film module: Under the effect of gravity, the liquid forms a thin liquid film along the tube wall, increasing the mass transfer area.
Liquid collection system: Recover the liquid after absorbing the solute and replenish fresh absorbent at the same time to maintain efficiency.
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