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Modeling packed bed reactor

Posted Jan 7, 2011, 9:52 a.m. EST Fluid & Heat, Computational Fluid Dynamics (CFD), Chemical Reaction Engineering, Geometry Version 4.0 3 Replies

Chung-Yul Yoo
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Hi

I am a beginner of COMSOL. I would like to design packed-bed reactor. The reactor diameter is 1 mm, and the particle size is about 1 micro meter. The porosity of packed bed is about 60%. If I want to fill reactor with this small particle, I need about 1000 particles, it take too long time for me. Is it possible to mimic this reactor using other method?

Thank you for your help

3 Replies Last Post Dec 8, 2013, 4:43 p.m. EST
COMSOL Moderator

Hello Chung-Yul Yoo

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Sanjeev Rao
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Posted: 1 decade ago Feb 17, 2011, 12:40 p.m. EST
There is a Packed Bed reactor model in the Chemical Engineering Model library, in version 3.5a (not sure about 4.0 because haven't used it). You do not have to physically insert 1000 particles in the geometry, there are ways around it; the model file explains it in detail. Use the model documentation to work along with the file.

Hope this helps!

There is a Packed Bed reactor model in the Chemical Engineering Model library, in version 3.5a (not sure about 4.0 because haven't used it). You do not have to physically insert 1000 particles in the geometry, there are ways around it; the model file explains it in detail. Use the model documentation to work along with the file. Hope this helps!
Adel Shojaei
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Posted: 1 decade ago Apr 17, 2011, 6:29 a.m. EDT
hi dear
I am working with this software and I am beginner and working about reactors.
I'm student of petrochemical engineering.
can you send me some examples about fixed bed rectors?
If you don't have any example about fixed bed reactors please sent me some useful and simple examples about reactors.
thanks
hi dear I am working with this software and I am beginner and working about reactors. I'm student of petrochemical engineering. can you send me some examples about fixed bed rectors? If you don't have any example about fixed bed reactors please sent me some useful and simple examples about reactors. thanks
Moien Bahardoost
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Posted: 1 decade ago Dec 8, 2013, 4:43 p.m. EST

There is a Packed Bed reactor model in the Chemical Engineering Model library, in version 3.5a (not sure about 4.0 because haven't used it). You do not have to physically insert 1000 particles in the geometry, there are ways around it; the model file explains it in detail. Use the model documentation to work along with the file.

Hope this helps!


There are so many ambiguous points in this model,
Could you please tell me about the definition of geometry and implication of two models (mod1 & mod2)?
I think the “general Extrusion” is the critical point that I can’t follow.
I would be grateful if you could introduce me any references through which I understand this intricate modeling.
[QUOTE] There is a Packed Bed reactor model in the Chemical Engineering Model library, in version 3.5a (not sure about 4.0 because haven't used it). You do not have to physically insert 1000 particles in the geometry, there are ways around it; the model file explains it in detail. Use the model documentation to work along with the file. Hope this helps! [/QUOTE] There are so many ambiguous points in this model, Could you please tell me about the definition of geometry and implication of two models (mod1 & mod2)? I think the “general Extrusion” is the critical point that I can’t follow. I would be grateful if you could introduce me any references through which I understand this intricate modeling.

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