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Mdea Questions


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#1 Board operator

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Posted 09 June 2024 - 06:36 PM

I have a question about MDEA regenerator. Is there a way of knowing how much reflux you should be producing in regenerator? and what the reflux flow rate should be? Also what's the purpose of a higher MDEA weight percent?

#2 Pilesar

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Posted 09 June 2024 - 08:38 PM

Distillation columns need enough reflux to meet separation specifications. So the reflux flow rate should be 'enough'. Water requires energy to boil. Where boiling water can be avoided, energy can be saved.



#3 Nikolay_

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Posted 09 June 2024 - 10:40 PM

Hi, you can find Btu/ft3*h lean amine in literature and conert it to Lb or kg/h steam. It is approximately equal vapor flow from top of column/reflux.

#4 shvet1

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Posted 10 June 2024 - 12:07 AM

Also what's the purpose of a higher MDEA weight percent?

 

Higher amine fraction => more H2S transfered => higher performance of treatment system

Higher amine fraction => higher temperature in reboiler => higher amine degradation rate

 

update

https://read.nxtbook...oda_ineos_.html


Edited by shvet1, Yesterday, 08:21 AM.





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