2 replies to this topic

[alchemist]

Hi,

 

I am trying to calculate the CAPEX for a CO2 capture process.  The intial fill of the solvent is typically counted as part of CAPEX.  I have the column diameter, packing height and the packing material from a simulation software.

 

Can someone explain or point me to material on how to calculate the intial volume of solvent needed for the column.

 

My initial assumption is to use the "packing height * column diameter * void fraction * flooding fraction"  to get the total solvent at steady state operation and use this as the inital fill.  Does this sound reasonable ?

 

 

Thanks

-AC

[breizh]

Alchemist ,

Here you are talking about the Hold up of the column , meaning the volume occupied by the liquid ( total volume of the column-volume occupied by packing ) . I would consider also the volume of the piping full of solvent from ST to column and returning to ST + minimum stock in the storage tank to operate the equipment.

 

Hope this helps

 

Breizh

[alchemist]

Thank Briezh,

 

I was thinking of using an additional 10% of the solvent to allow for the volume in the piping and the storage tank.  Does this seem reasonable.

 

-AC