Excel library for process calc's including distillation

[carlo.stenali]

tmander, my copy has three different options

1) standard
2) select EOS root for minimum Gibbs Energy
3) Validate EOS root according state

the usual way is to select the EOS root for minimum Gibbs energy, validating EOS root introduces an additional test which can result useful in some cases, see for example the mixture CH4 0.85 H2S 0.15 (SRK-API) , there are more complex examples with Wong Sandler or Huron Vidal mixing rules.