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[Dandy Komboris]

Dear Fellow Engineer

 

In my plant we have 2 Buble Cap Tray Contactor (14 Trays for each absorber column)

The Operating Design for this Glycol COntactor (each column) :

 

60 MMSCFD

200 Psia

110 Fahrenheit

Water Content Inlet (Saturated Natural Gas)

Water COntent Outlet 7 lbs/MMSCF

TEG Circulation Rate 18 Gallon Per Minute

 

The source of natural gas in my location has been declining for recent years, we used to receive 120 MMSCFD from Gas Wells but nowadays we only receive 45-50 MMSCFD with 65-70 Psia in our facilities.

 

Our management has decided to upgrade/re sizing the Contactor Column adjust the performance to Gas Volume and pressure nowadays.

 

Is this possible to re sizing/ upgrade the contactor column ?

 

knowing that this contactor column to operate in High Pressure (200 Psia), i wonder is this possible to make an upgrade in my contactor so that the contactor can absorb enough 45-50 MMSCD gas with 65-70 psia in accordance to water content outlet 7 lbs/MMSCF

 

 

Have you ever had this kind of similar experience in your plant like my plant ?

 

Please give me advice

[gegio1960]

just few points of brainstorming/clarification....

do you know the composition/MW of the gas?

could you kindly tell us where, exactly, is the problem? in which direction/parameters you'd need/like to modify your system...

under a pure (gas) volumetric point of view 50 MMSCD(?) at 65 psia are 28% more than 120 MMSCD(?) at 200 psia...while 45 at 70 are only 7% more...

on the other side, your water load (again, in the gas) is reduced by more than 40%...

are you thinking to increase the TEG circulation and reducing its concentration? (check/revamp of the liquid side hydraulic/pumps)

or

are you thinking to check/modify the trays?

good luck!

Edited by gegio1960, 29 April 2017 - 01:20 AM.