Prepared by: Mohammed S. Al-Zamil Mohammed S. Al-Zamil Prepared For: Dr.M.Al-Ahmad

High lights Introduction Objective Flooding point Loading point Experimental step Result from lab Discussion & conclusion

Introduction Packed column it is very important process in chemical engineering. Packed bed is a hollow tube, pipe, or other vessel that is filled with a packing material. there are tow types of packing: 1) Random packing 2) structured packing Random packing has a many types like ( raschig rings, metal ball rings…etc).

objective of this experimental In this experiment interested in pressure drop and loading & flooding through the packing column. Finding pressure drop through paced column as a function in air flow with a different water flows.

Flooding point Amount of liquid flood in the top of the column, with increasing pressure drop due to the accumulation of liquid in side packed column. There is an upper limit to the air flow rate velocity and above this velocity the tower cannot operate.

Loading point Amount of liquid accumulate in side the packed column,that generate pressure drop.

Packed bed column

Experimental steps passing the maximum air flow until all evidence of moisture in the packing has disappeared. run on the pump of air. pressure differential cross the column was readied At ( 0 ) flow rate of air.

flow rate of air was (20 L/min), and then pressure drop cross the column was readied. Then we repeat this step until (160 L/min) air flow. And we take the dry & wet column. Then we change the water flow rate respectively (1.5, 2, 2.5, 3 )L/min.

Result from lab

Discussions From the graphs we see the loading point is appearing at 2, 2.5 and 3 L/min of flow rate of water,at 160, 140 L / min of air flow rate respectively. Also the flooding appears after the loading directly at 2.5 and 3 L / min of flow rate of water,at 160 L / min of air flow rate for each cases. That’s mean if the water flow rate and air flow rate is increase that makes water stopping in the column, that also mean there is no dropping,this case is called loading.

Conclusion This experiment very important to study the meaning of loading and flooding points, and to know the type of packing material and how we can packed it.

Thank You