2 replies to this topic

[MalMan]

Hello everyone,

 

I need your help in the following two scenarios: 

 

- How to estimate ethylene concentration in Toluene, I have a reactor with a volume of 800 mL where 400 mL of toluene will be added, then, temperature is increased to 140 C and ethylene is introduced with a pressure of 10 barg. How can I estimate the ethylene concentration in toluene either by calculation or using Aspen Plus.

- The second case is similar but the solvent is Silicone oil (300 mL) and Toluene (100 mL), I was thinking of trying to estimate ethylene concentration in this case experimentally but couldn't really figure it out. 

 

Thank you in advance ... 

 

 

[Mahdi1980]

You should find the binary curve of Toluene-ethylene in 10 barg and 140 C if the pressure of the reactor remains at 10 barg regardless of any reaction.

By aspen plus , you can simply find the materials from data and a state-equation such as Peng-Robinson and in simulation environment define a separator/vessel and then enter both materials into the vessel.

Note that the flow of ethylene gas to be specified.

So , at the outlets you can see the concentration of ethylene in both phases.

 

for further question, contact.

[MalMan]

Thank you so much Mahdi for your kind help. 

 

Anyone have some ideas on the scenario with the oil ? the oil doesn't exist in Aspen, so it must be approached experimentally i presume ??!!

 

Regards,