Hi 74Elsinore,
To get your stream do the following (assuming you are using HYSYS)
1.Create 3 streams: stream1, stream2, stream3
2. Define the hydrocarbons composition in stream1 on molar basis. Define pressure as 0.1 psig and any temperature (such as 190F). Define an arbitrary flow value...
I agree with joerd.
For an obsorber, simulate without a reboiler/condenser (typical). For a new tower, assume 20 actual trays. CO2 specification is acheived based on tower efficiency (# of trays), circulation rate (lean amine to absorber), lean amine wight % in the circulated stream, lean...
I agree, send the simulation case to Hyprotech/Aspentch accompanied with a discription of the problem. If you do not want to send the case, at least send a case that contains only the stream in question.
A.Zeidan
Process, Thermodynamics and Simulation
Breaking the complexity of the UNIFAC model was a challenge for my undergraduate thesis. To complicate things further, I actually used a model that combines UNIFAC with Peng-Robinson to predict liquid-liquid equilibrium.
The book I used was Chemical and Engineering Thermodynamics
by Stanley I...
I am not sure what is the structure of your component, but this might be helpful:
You can create a hypothetical using the UNIFAC model structure builder. You need to know the exact component groups in your compound. Refer to any thermodynamic equilibrium text for information about UNIFAC...
There is a misconception that light components have lower latent heat. NOT TRUE. Light components has lower boiling temperature but that does not mean that they have lower latent heat. Look at Cox chart and you can confirm that.
One issue in the way the latent heat was calculated is taking...
Based on the reflux stream temperature, how can I determine if aqueous droplets will form in the tower, potentially causing corrosion? Do I check if the reflux temperture is colder than the condensation temperature of water at the tower operating pressure? Or do I use the free water formation...
Based on the reflux stream temperature, how can I determine if aqueous droplets will form in the tower potentially causing corrosion? Do I check if the reflux temperture is colder than the condensation temperature of water at the tower operating pressure? Or do I use the free water formation...
