Type and material of the packing inside the chlorine water scrubber tower
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This post was last edited by sunjl1981 on 2013-1-6 at 22:10. What types of random and structured packing are generally used in chlorine water scrubbers, sulfuric acid packed dryers (sulfuric acid concentration: 75%), and combined bubble towers (sulfuric acid concentration: around 96%?), and what is the material of these packings? What are the advantages and disadvantages of various fillers? Thank you # hcbbs
It is recommended to use short-step rings as packing; titanium rings or CPVC rings can be used in scrubbers, while PVC rings are sufficient for bubble towers and packed towers.
We use two types of mixtures: CPVC and PVC
Is there anyone who can explain it in more detail? Why choose this type?
We use CPVC Taylor wreaths, mainly because we want to keep the pressure drop due to the filler as low as possible.
PVC+CPVC plastic flower garlands
Based on the tower diameter, 51 CPVC wreaths and corrugated plate structured packing are generally used.
We used PVC stepped packing for seven or eight years with no problems
Those upstairs have explained everything in detail. One additional point: if the temperature of the chlorine gas entering the chlorine scrubber is high, PVC packing cannot be used. We once used PVC packing, but the temperature of the chlorine gas entering the scrubber was around 70 degrees; as a result, after one year the packing inside the tower deteriorated and stuck together, causing increasing resistance, which forced us to shut down the system and replace the packing
CPVC is used for scrubber towers, while PVC is sufficient for bubble columns and packed towers. Garlands can be used in any format
For chlorine water scrubber towers, it is recommended to use CPVC Teller Rosette Rings as packing material. These rings are formed by combining multiple circles to create an elliptical shape; a reinforcing rib is added in the middle section, giving them an “A” shape. This design allows for a higher liquid retention capacity in the gaps between the rings, enabling the liquid inside the tower to stay there for longer periods of time. As a result, the contact time between the gas and liquid phases increases, thereby improving the mass transfer efficiency of the packing material. It also features a high porosity, low compressibility, high bleeding value, and low specific gravity. It should be used more frequently in gas washing, purification towers, etc.