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Absorption With Amines Simulator Aspen Plus

ammonia apenplus absorption dea simulation

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#1 larismo

larismo

    Brand New Member

  • Members
  • 1 posts

Posted 11 June 2020 - 02:00 PM

Hi Everybody!

 

 Me and my friend are new to the topic and we have a limited knowledge of simulating amine plants.

 

Our objective is removal CO2 and H2S with secundary amine (DEA).

 

our question is:

 

In simulator aspen plus there are radfrac block, but when we get started to simulation the error message appear:

 

***SEVERE ERROR
   INSUFFICIENT STORAGE ALLOCATION FOR DECOMPOSITION.
   USE **STOR-FACTOR** GREATER THAN  10.00      IN PARAM SENTENCE.
   TRY INCREMENTS OF 0.5.
 
***SEVERE ERROR
   CMBAL CALCULATIONS FAILURE: RERUN WITH CHANGES SUGGESTED
   IF THERE ARE ANY.
 
***SEVERE ERROR
   INSUFFICIENT STORAGE ALLOCATION FOR DECOMPOSITION.
   USE **STOR-FACTOR** GREATER THAN  10.00      IN PARAM SENTENCE.
   TRY INCREMENTS OF 0.5.
 
*  WARNING
   REST OF BLOCK BYPASSED DUE TO SEVERE ERROR.
 
 
 
And we don't know, how to fix them.
 
Someone had the same problem, could please, help us?
 
 
our specification to radfrac:
 11 stages
buttom pressure 10 bar
top pressure 11 bar
colunm with pall ring packing
 


#2 breizh

breizh

    Gold Member

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  • 4,788 posts

Posted 11 June 2020 - 10:40 PM

Hi,

Check your input data !

are you sure about the pressure profile ? P top > P bottom !!

Breizh






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