Hello,

Please check the attached pdf, maybe could be useful.

All the best,

Junior

Excuse me.I dont see any attached pdf.

This one....!

thanks.

thank you junior for your help. but this tutorial explain applying kinetic type reaction in aspen.

Hi

Actually an equilibrium reaction consists of one reaction in the direct sense and another one in the opposite direction. On Aspen Plus, you'll have to insert both reactions separately. Be aware of the type of reactor that you choose for equilibrium reactions.

This may help you.

Best Regards,

Rui

Hi Rui .

Thank you for your guidance, but what I face to it is an equilibrium reaction that its equilibrium constant is function of the temperature.

For applying both direct and opposite reactions in aspen plus, pre-exponential factor and activation energy of that reactions must be specified. Surely, for this matter, the reaction temperature must be constant. But my object of this reaction is optimization of some component yield, thus the temperature of reaction is a variable.

The reactor type that I have used  is RPlug.

Hi ABDULLAH

Thank you for your help.

For design and process specification I cannot select other reactors except Rplug,

My object is applying a reaction network that contains of an equilibrium reaction and several kinetic reaction that pre-exponential factor and activation energy of them is defined, so I select a power law type reaction in aspen. I did the idea of splitting the equilibrium reaction in forward and backward, but for optimization objects, I cannot assume a fixed temperature for reaction along the simulation.

All the best.

Hello,

Why do not try with Aspen Reaction Modeler and built your own model?

Kind regards,

Junior

Hi Junior

If your meaning is about “User Rate-Constant Subroutine”, unfortunately I don’t have any information about Fortran language ! .

Have you experience about aspen reaction modeler that can help me.?

Best regard.

The concentrations in equilibrium reaction are determined by its equlibrium constant. Regards