Complete Overview Of Packed Tower, Packing Elements, And Function Of Packing Elements.
Today we discuss or try to know what is Packed Tower and what are Packing Elements, the Function Of Packing Elements and what are they made of. As we all know the packed tower is an important static vessel in the industrial sector. Which is commonly used in petrochemical, chemical, gas processing plant, refinery, power plants, or acid plants. Or where two or more fluids are used for proper contact or for one or more fluids to flow evenly.
What is Packed Tower?
All kinds of petrochemical, chemical, gas processing plant, refinery, power plants, or any type of processing plant use like Absorber, Adsorber, Desorber, Separator, Knock-out Drums, Column, Towers, etc. For the convenience of the process, some of these inert materials and packing of different shapes are sometimes used. For better separation, absorption, desorption, or mixing.
Column and towers are sometimes filled with an inert material referred to as “Packing”. When a tower has been filled with packing. It is called a Packed Tower.
Components Of Packing Tower:-
Packing Bed Support/ Multi-beam Grid,
Chimney Tray/ Intermediate Tray,
What Are The Packing Elements?
The shapes of the materials used for packing a tower or column are not all the same. The Packing is inert and therefore it does not react with process material.
The materials used for packing a tower or not all identical.
What The Function Of Packing Elements?
The shell of the Tower contains packing, which will allow the materials to flow through the packing. The Packing in a column allows the gas and a liquid to be better distributed. Small droplets of liquid have more Surface area than one large droplet of equal volume. The purpose of the packing in a column is to help break the liquid into smaller droplets. Proper contact comes with two separate liquid or liquid and gas counter-current flow into the packing.
What are Common Problems in Packed Tower?
There are Common problems in packed Towers are:-
Channeling provides poor liquid-vapor contact, in a Packed Tower. In any type of Absorption Process, a specific gas has to be separated from a gas mixture. For the above reasons in the absorber the Absorption Process interrupted. Which can severely damage or interrupt the next step of the Absorption Process.
For example, If we discuss the CO2 removal process of the ammonia plant here. In this case, it is seen that only CO2 gas is separated from the process gas by the Benfield Solution/Potassium Carbonate at Absorber. If the CO2 slip with outlet gas is more than 0.1% at Absorber. In that case, 01% gas is enough to interrupt or damage the next step methanation process. Since 01% of CO2 Slip, Methanetor Catalyst temperature can increase 70 degrees.
For example, the differential pressure of the vessel increases due to the foaming or packing block on the Absorber. As a result, the Benfield Solution/Potassium Carbonate solution carryover increases, and the gas slip also increases.