Error in single-tower simulation; please advise, experts
Thread Content
I added a series of new substances to Aspen, and two of them were simulated successfully. But when other substances are added, using exactly the same procedures, the following error message always appears: SEVERE ERROR IN PHYSICAL PROPERTY SYSTEM – THE IDEAL GAS MODEL LACKS SOME PARAMETERS: CPIG/1ST ELEMENT (DATA SET 1) IS MISSING FOR COMPONENT BMIMCL. **** PROPERTY PARAMETER ERRORS HAVE BEEN FOUND DURING THE CALCULATION OF IDEAL GAS PROPERTIES FOR HIG. PLEASE FIX THESE ERRORS, RE-INITIALIZE THE SYSTEM, AND RUN THE PROCESS AGAIN. Thank you
A lot of new substances can probably be added, right? There’s no problem with the addition process
Are there certain physical property parameters missing for the newly added substances in Aspen?
The physical properties are incomplete, but the essential ones are present. The two new substances added last year were fine, but those added this year using the same method keep having problems :(
The error occurs because the ideal gas equation you used does not take into account the physical properties of the substance in question. If you apply the same method to a new substance, is the process identical? Is there any phase change or something? All of these can cause a lack of material properties.