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Cryogenic Air Separations Unit Hysys Simulation

cryogenic distillation air double column linde compressor

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#1 danial1997

danial1997

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Posted 13 March 2019 - 04:50 PM

I am currently doing a detailed engineering design on an air separations unit using Linde's double column for my 3rd year design project, I am trying to model the upper and lower columns as two separate columns for the simulation.

I have been playing around with the HP column's specs but I'm struggling to get my distillation columns to converge, would very much appreciate help. I am also clueless as to how to remove argon from the LP column as a side draw.

I have attached the simulation file.

The goal is to produce roughly 33 tons per hour of 99% pure oxygen and residual pure nitrogen for nitrogen blankets,etc, for the feedstock for an ethylene oxide plant.

Cheers!

Attached Files

  • Attached File  ASU.zip   189.85KB   22 downloads


#2 Bodhisatya

Bodhisatya

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Posted 28 April 2019 - 07:33 AM

I am currently doing a detailed engineering design on an air separations unit using Linde's double column for my 3rd year design project, I am trying to model the upper and lower columns as two separate columns for the simulation.

I have been playing around with the HP column's specs but I'm struggling to get my distillation columns to converge, would very much appreciate help. I am also clueless as to how to remove argon from the LP column as a side draw.

I have attached the simulation file.

The goal is to produce roughly 33 tons per hour of 99% pure oxygen and residual pure nitrogen for nitrogen blankets,etc, for the feedstock for an ethylene oxide plant.

Cheers!

Hello Danial

 

I have shared answers on Thread related to ASUs quite often ,requesting to use the search bottom to explore.

 

You need to be descriptive about what parameters you are playing with to converge HP Column,also for a 99 % pure O2 stream 33TPD plant ,why is an Argon sidedraw required ,normally these small scale ASUs are only double column N2O2 plant.

 

Revert back with details.Attached is a good open source article that I found.

 

Bodhisatya.

Attached Files


Edited by Bodhisatya, 28 April 2019 - 07:34 AM.





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