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Evaporators On Hysys

simulation hysys evaporators aspen nitric acid

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#1 Pintinho375

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Posted 01 April 2019 - 10:55 AM

Hello!

 

 

I'm doing my Master's thesis on the production of nitric acid.

 

 

I came across some evaporators i need to simulate on Hysys but there isn't any in the software (10.1).

 

I was thinking on adding an heat exchanger and then a separator. But i'm not sure if this is the best way.

How would you do it?

 

 

Thank you



#2 Bobby Strain

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Posted 01 April 2019 - 06:29 PM

So, what is the service for this evaporator?

 

Bobby



#3 Pintinho375

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Posted 03 April 2019 - 03:59 PM

So, what is the service for this evaporator?

 

Bobby

 

Thank you for the reply Bobby

 

Is is used for separating the water from the ammonia as it heats it.



#4 Bobby Strain

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Posted 03 April 2019 - 04:53 PM

The process usually uses anhydrous ammonia. If there is water in the ammonia, it will dilute the acid product. If you don't have anhydrous ammonia, you will need a fractionator, not a simple evaporator.

 

Bobby



#5 Tanhieungo

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Posted 02 May 2019 - 06:07 PM

if you use hysys dynamic ,you should use tube bundle function to simulate ketlle or evapor (chiller )
if you use steady state hysys .you should use heat exchanger and seperator




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