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Tray Clogging In Absorber In Mdea Cycle


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#1 siamak

siamak

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Posted 12 November 2018 - 02:14 AM

In our plant after maintenance and cleaning , the lower trays in MDEA contactor clogged and makes increasing pressure differential in tower and reducing inlet feed.what can we do to reduce this problem?

 

Inlet gas temperature= 25 C

Contactor  pressure= 67 barg

Amine inlet temp= 40-43 C

Amine rate= 145 M3/hr



#2 PingPong

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Posted 12 November 2018 - 03:52 AM

In general: if solids are deposited inside equipment, causing plugging or corrosion or other problems, take samples and have them analyzed.



#3 Bobby Strain

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Posted 12 November 2018 - 10:12 AM

How do you know they are "clogged"? And your opening sentence could mean anything. Did you clean the absorber?



#4 qadi

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Posted 22 December 2018 - 05:00 AM

Dear Saimak

 

High DELTA  P is indication of foaming, 

do the following

- Make sure inlet filter separator is cleaned , check delta p 

- drain any level in filte and inlet separator

- increase stroke of antifoam 

- Make skimming at 60%level

- calculate deta P in each tray and compare with design sheet

- check H2S and CO2 content in gas outlet 

- check the trend of level  in flash drum 

 

Best Regards






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