2 replies to this topic

[Knickknack]

I have some questions about PFR reactor simulations in DWSIM. Honestly, I don't understand how the kinetic and heterogeneous catalytic reactions work. For the ammonia reaction, I tried using the Temkin-Pyzhed model, which, according to the literature, is in kmol/(m³*h). However, when I try to use it for the heterogeneous catalytic reaction, it's only in kmol/(kg*h). I have the option to enter "catalyst loading," but I don't know how it actually works in the simulator—whether it multiplies, divides, or something else.

I also have questions about the reactor specifications. There are three options: "reactive volume," length, and diameter. I'm not sure if "reactive volume" is calculated based solely on the length and diameter of the equipment.

[latexman]

I recommend you ask your favorite search engine's AI mode these questions.  Just copy and paste your post into it.  It will help you immensely.

[FRBChemE]

Reactive Volume is the length and diameter after the volume of the catalyst is subtracted.  Assumed is a circular cross section. total volume is pi/4 * radius**2.  

Hope this clarifies definitions