Calculate Solubility of Hydrogen in Benzene using ASPEN
Calculate Solubility of Hydrogen in Benzene using ASPEN
(OP)
Hi
I am required to calculate the solubility of hydrogen in benzene. Could anyone tell me how I could do this using ASPEN? I have only a very basic knowledge of the software.
Thanks in advance.
Akho
I am required to calculate the solubility of hydrogen in benzene. Could anyone tell me how I could do this using ASPEN? I have only a very basic knowledge of the software.
Thanks in advance.
Akho





RE: Calculate Solubility of Hydrogen in Benzene using ASPEN
HAZOP at www.curryhydrocarbons.ca
RE: Calculate Solubility of Hydrogen in Benzene using ASPEN
In essence you need to do a flash calculation, and the typical steps are:
- Select your components (H2+Benzene)
- Select the thermodynamic method (SRK or PR with interaction coef is probably okay).
- Add a stream or feed to the flowsheet.
- Add the composition and flow rate for the stream.
- Specify two of the following: Temp, Pres, Enthalpy, Entropy, Liquid fraction.
- Run the simulation and look how much H2 is in the liquid phase.
RE: Calculate Solubility of Hydrogen in Benzene using ASPEN
I have been using the process simulators (Aspen Plus, Pro-II, HYSYS) for a long time, and I would like to give some comments from my experiences.
First, I think CJKruger gave a pretty clear and accurate guide hot to get the result from Aspen.
Here are my comments:
- H2 / Benzene compositon or ratio: You may have to adjust it until you have results with two phase - V & L.
- Is you liquid is 100% Benzene? If other compound exist, it can have significant effect to H2 solubility.
- I don't think you can fully trust the solubility calculation result from Simulator. Please try different Thermodynamic methods in addition to PR, SRK, and compare the results. Also please try to get some literature data if at all possible that youi can use againt to verify the simulation result.
RE: Calculate Solubility of Hydrogen in Benzene using ASPEN
RE: Calculate Solubility of Hydrogen in Benzene using ASPEN