1 reply to this topic

[ceng.shoaib]

Hello,

 

Can anyone please explain in a step-by-step procedure on how to produce a simple breakthrough curve in ASPEN Adsorption?  I just want to know how to apply a basic gas adsorption (any gas) on an adsorbent (activated carbon) in a packed bed adsorber and measure the breakthrough curves for adsorbate.  I am struggling in achieving this.  Any help would be appreciated.

 

Thanks,

Shoaib.

[thorium90]

You don't need Aspen to do the simple version. Perhaps you can use the Klinkenburg approximation for linear isotherm and plug flow in a semi infinite medium. Attachment, page 9 equation 23.

 

If you want to use the other models, then you can implement the PDE in numerical solvers to produce the breakthrough curves considering film diffusion dominated, macropore resistance dominated, micropore resistance dominated, axial dispersion effects for linear or non linear langmuir isotherms. You can form the appropriate (constant surface) boundary conditions and solve numerically. Some simplifications like steady state or semi infinite medium can help you simplify the PDE for you to investigate other effects.

Attached Files

•  AdsorberDes2.pdf   536.46KB   58 downloads