7 replies to this topic

[engrbab01]

Dear All,

I am working on a study project of asphalt production process modeling in Aspen Plus. I am struggling to model the bitumen as component. Can anyone could help me.
 

Thanx

Bab

[Pilesar]

What do you want to model? Component mass flow only? Stream viscosity and density? What is your list of components and what unit ops? Bitumen should have insignificant vapor pressure. You might can get away with choosing a heavy component that has no vapor pressure and making necessary modifications to its properties. I have used cholesterol in some models for mass balance purposes because of its extremely low vapor pressure without being a solid. If you need properties like viscosity and surface tension then you may have to choose a very heavy petro component or range of components. Is this a student project? Do you have a process flowsheet?

[breizh]

Hi,

You may find pointers in this link:

Prediction Of Density And Viscosity Of Bitumen Using The Peng-Robinson - Industrial Professionals - Cheresources.com Community

 

Breizh

[engrbab01]

Actually I have to model the asphalt production process for that purpose I'm struggling to add bitumen and other components in Aspen Plus.:-(

What do you want to model? Component mass flow only? Stream viscosity and density? What is your list of components and what unit ops? Bitumen should have insignificant vapor pressure. You might can get away with choosing a heavy component that has no vapor pressure and making necessary modifications to its properties. I have used cholesterol in some models for mass balance purposes because of its extremely low vapor pressure without being a solid. If you need properties like viscosity and surface tension then you may have to choose a very heavy petro component or range of components. Is this a student project? Do you have a process flowsheet?

[latexman]

Actually I have to model the asphalt production process for that purpose I'm struggling to add bitumen and other components in Aspen Plus.:-(

Why did you only answer Pilesar’s first question? He had more questions and suggestions. Don’t you want help?

[engrbab01]

Extremely sorry for not answering the whole question.

 

Yes its a study project.

Basically its a project on electrification of asphalt production from fossil fuels to electricity. Please see the attached figure I have to perform mass and energy balance for the system.

 

 

Actually I have to model the asphalt production process for that purpose I'm struggling to add bitumen and other components in Aspen Plus.:-(

Why did you only answer Pilesar’s first question? He had more questions and suggestions. Don’t you want help?

 

[engrbab01]

I already attached the PFD but its not shown up. Attaching again to this hopefully this will work.

[latexman]

I already attached the PFD but its not shown up. Attaching again to this hopefully this will work.

 

@engrbab01,

 

I see no attachment.

 

If you edit one of your posts to add the PFD, click "More Reply Options", or if you start a new post to add the PDF, click "Use Full Editor".  Either way, then look under the text box.  The file attaching functionality is under the text box.

 

Or, is there a different issue?