What to do about the groups missing in UNIFAC in Aspen? Please help everyone

2010-04-23View Original

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In Aspen+, I need to calculate processes related to methyl nitrite (CH3ONO). Due to incomplete information in the property database, UNIFAC has to be used. However, I found that there is no entry for the O-N=O group in A+. What should I do? I’m in a hurry. Thank you all

Reply #22013-05-16

I’m unable to enter parameters when customizing a group – what’s going on? It has already been defined in the components-unifac group. Is it a version issue?

Reply #32013-05-16

This post was last edited by 55656937 on 2013-5-16 17:35. CH3ONO: I made a mistake; I thought it was CH3NO2

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What to do about the groups missing in UNIFAC in Aspen? Please help everyone

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