Greetings

DWSIM usually works with fluids as such elemental carbon is an interesting request keep this in mind as you continue using the software.

Regardless DWSIM has a compound creator where you can add custom compounds. You will need to know the parameters of the custom compound for the equation of state you are using and the interaction model you are using.

See:

http://dwsim.inforside.com.br/wiki/index.php?title=Using_the_Compound_Creator_Utility

I hope this helps

Kind Regards

Douw Faurie Thank you so much for your reply

Go to Tools,

Select Compound Creator Wizard,

Then follow the steps and complete the UNIFAC structure.

Finally you have to import it to the simulation by json.

This is very helpful. Thanks