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How to decide gas absorption tower pressure? Mention reference please

How to decide gas absorption tower pressure?
Mention reference please
Engineering   Chemical-Engineering   
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Answer #1

Pressure drop in gas absorption column arises due to following reasons:

1-Resistance offered by the fluid flow.

2-Resistance due to column packing and column internals.

3-Due to some kind of solid particles getting accumulated in packing.

The overall pressure drop can be estimated by combining the number of absorber stages,unit packing pressure drop and unit packing height.

Height of transfer unit (HTU),Number of transfer unit(NTU)Height equivalent to theoritical plate(HETP) plays an important role in deciding the pressure drop of a packed column.

Liquid flow rate and gas flow rate are also an important parameter in deciding the pressure drop.

So in order to have perfect operation in a gas absorption column we have to operate it at an optimum pressure drop.

Reference- MASS TRANSFER OPERATION-- ROBERT E.TREYBAL

#HOPE THIS WILL HELP YOU.....

#THANK YOU!!!!!

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