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Acid Gas - Caustic Wash - Hysys Help

h2s scrubber acid gas cleaning

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#1 Max Domingues

Max Domingues

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Posted 18 September 2019 - 02:33 PM

Hello to all!

 

Does anybody here could explain me how is the convergence behavior of Hysys on Acid Gas - Caustic Wash package?

 

I am simulating a scrubber to remove H2S and i don't understand the low efficiencies generated by Hysys and, eventually, when i change something - like change the package and then return to the old package - (not on the stream inlet), push run again, the results changes.

 

I know its an 'efficiency' matter but i don't understand what is happening.

 

I know if i change efficiencies manually, i can get any number i want but, at what cost? what is involved? See picture attached.

 

Thank you a lot!

 

Max

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