7 replies to this topic

[jiashuling]

hello
could anyone help me please, i need the update UNIFAC main group and its subgroup and their interaction parameter, where to get it??

Frome “Vapor-liquid Equilibria by UNIFAC Group Contribution.6.Revision and Extension”I get 64 maingroup,but I don’t find the subgroup and their interaction parameter.
my request is, could someone had that book upload it or anyone could help me with a suggestion to solve my problem
i'm hopeless any information could help........
thanks

Edited by jiashuling, 29 November 2012 - 03:22 AM.

[breizh]

let you try this resource :
Breizh

[jiashuling]

let you try this resource :
Breizh

thanks but i want the 64 main group and tne parameters

[breizh]

check page 2 and 3 of the excel file
Breizh

Edited by breizh, 26 November 2012 - 11:24 PM.

[jiashuling]

check page 2 and 3 of the excel file
Pierre

yeah I saw it
it has 56 main group canyou give me the file which has 64 main group

[breizh]

Let you consider the book : The properties of gazes and liquids by Poling /Prausnitz and O'Connor for additional information . I guess Google should be a very good support too .
Breizh

Edited by breizh, 29 November 2012 - 03:34 AM.

[jiashuling]

Let you consider the book : The properties of gazes and liquids by Poling /Prausnitz and O'Connor for additional information . I guess Google should be a very support too .
Breizh

Thanks . so there are 56 main group and 120 subgroup we can get ?

[MrShorty]

I will preface my comment by saying that I have not kept up with the latest UNIFAC releases, nor do I follow the consortium's work closely. According to the UNIFAC consortium's website, http://unifac.ddbst....fac-matrix.html, many of the parameters for group 64 are to be released sometime this year. I'm not certain, but I believe that the consortium first releases information for consortium members only, and later releases them to the public. If that is so, the website does not say whether the given "release date" is the private or the public release. Perhaps the I&ECR article you mentioned explains how to contact the consortium for future releases. In any case, I think your best bet for getting the most recent results from the consortium will be to contact them and ask them if they have publicly released the group 64 parameters and, if so, where they are published.