currently I am modeling the membrane reactor. hydrogen (reaction product) as a permeated substance. when modeling a packed bed reactor I use:
D=(U*Dp)/(11*(1+(19.4*((Dp/(d1*2))^2))))
D= diffusion coefficient
U=velocity
DP=catalyst diameter
d1=reactor diameter (to membrane line)
to calculate the effective radial diffusion coefficient in packed bed (m2/s) and the results are in accordance with experimental.
but when modeling the membrane packed bed reactor, the simulation experienced an error.
Are there any suggestions regarding the diffusion coefficient equation for permeated substances that is more suitable for me to use?
Your answer will be greatly appreciated.
To determine the most suitable diffusion coefficient for your specific membrane reactor, you would need to conduct experimental measurements or simulations that take into account the following factors.
-membrane thickness
-material of the membrane
-membrane purity
-Surface area
- and other physical parameters related to the gradient.
I suggest you to first run the computational simulation.
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