The product is a customized product, and the above quotation is a deposit

overview

It has the characteristics of corrosion resistance, anti-corrosion, and easy maintenance. Widely applicable for the absorption and purification treatment of exhaust gases and waste gases in industries such as chemical, pharmaceutical, and petroleumIt can effectively protect the environment and beautify life.

To ensure sufficient absorption, the liquid absorbent must be in full contact with the gas. The main absorption methods used are spray absorption, bubble absorption, and membrane (filler) absorption.

purpose

1. Gas purification: The exhaust gases emitted during the production process often contain substances that pollute the environment, and purification is necessary before discharge.

2. Exhaust gas recovery: The exhaust gas emitted during the production process, some of which have great utilization value if recovered. For example, using water to absorb acetone vapor contained in the air to recover acetone, or using water to absorb gas from waste hydrochloric acid to recover hydrochloric acid, etc.

3. Preparation of semi-finished or finished products: In chemical production, absorption towers are often used to prepare gas solutions.

4. Separating gas mixtures: For example, in coking plants, washing oil is used to treat coke oven gas to separate and recover aromatic hydrocarbons such as benzene.

Working principle

Generally, reverse flow operation is adopted, where liquid flows from top to bottom inside the tower and gas passes from bottom to top. Reverse flow absorption can make the absorption more complete and obtain a greater absorption driving force.

After the gas outside the tower enters the tower, it enters the packing layer through the gas distributor. There is spray liquid from the liquid distribution tray or spray pipe on the packing layer, and a liquid film is formed on the packing. When the gas flows through the gap of the packing, it contacts the liquid film of the packing and undergoes absorption or neutralization reaction. The gas continues to move upward. After several times of absorption or neutralization, the gas is collected by the demister and discharged from the tower through the outlet. The liquid on the liquid film is recovered to the designated location through a liquid collector.

operate

The absorbent and the absorbed gas can be operated in reverse flow or in parallel flow. The rising fluid during counter current operation will cause an increase in the thickness of the liquid film. The liquid film flow rate decreases, usually when the gas flow rate is inside the tubeThe phenomenon of liquid flooding occurs at 5-10m/s, and the gas flows from top to bottom during parallel flow operation, which will cause the thickness of the liquid film to decrease and the flow velocity of the liquid film to increase. Under the same gas flow velocity, the fluid resistance during parallel flow is much smaller than that during counter flow. When flowing in parallel, the gas velocity can reach 15-30m/s. However, the absorption driving force is smaller than when flowing in reverse. Currently, most production uses parallel flow operation.

Contact: Manager Yao mobile phone:18831897799