Dear team,
I am converting triglycerides to FAME and has taken triglyceride TAG-PPO (C53H100O6) from the ASPEN biodiesel database.
I have given the reactions (1). Triglycerides--> Diglycerides ,(2). DG--> MG, & (3). MG-->FAME + glycerol along with the reversible reactions.
I have given the vapour -liquid-liquid as the valid phases for the RCSTR reactor and NRTL method was selected.
Though I have used all the components data from the ASPEN database, I am getting the following errors
->Calculations begin ...
VAPOR PRESSURE MODEL PL0XANT HAS MISSING PARAMETERS:
PLXANT/1ST ELEMENT (DATA SET 1) MISSING FOR COMPONENT TAG-PPO
****PROPERTY PARAMETER ERROR
ERRORS ENCOUNTERED IN CALCULATION OF VAPOR-LIQUID K-VALUES USING
OPTION SET NRTL FOR KVL.
! Calculations stopped because of missing property parameters
Can you please help me resolve the issue?
Thank you for the consideration
Kind regards
Arun
You can add Antoine parameters PLXANT-1 for TAG-PRO that essentially sets the vapour pressure of TAG-PRO to a very small number. Enter -1e+20 for the first parameter and 273.15 for the third parameter. All other parameters default to zero. The upper and lower temperatures can be set to a very large range, for example -273C to 2000C.
If you don't see PLXANT-1 under Methods/Parameters/Pure Components/, run Retrieve Parameters on the top ribbon.
Richard Sherritt Thank you it worked for overriding the error.
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