Isothermal reactor design - 2013

From Introduction to Reactor Design: 3K4
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Class date(s): 04 February to 14 February
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  • F2011: Chapter 5 and 6
  • F2006: Chapter 4

04 February 2013 (05A)

06 February 2013 (05B)

07 February 2013 (05C)

to see the effect on pressure drop in the packed bed.

11 February 2013 (06A)

14 February 2013 (06C): midterm review

25 February 2013 (07A)

The example covered in class is based on example 4-8 in F2006 and example 6-2 in F2011. <rst> The 3 ODE's are:

.. math::

\dfrac{dF_A}{dV} &= r_A\\ \dfrac{dF_B}{dV} &= r_B - R_B \\ \dfrac{dF_C}{dV} &= r_C

where :math:`-r_A = r_B = r_C` and :math:`-r_A = k\left(C_A - \dfrac{C_B C_C}{K_C} \right)`, and :math:`R_B = k_\text{diff}C_B`.

  • :math:`k = 0.01\,\text{s}^{-1}`
  • :math:`k_\text{diff} = 0.005\,\text{s}^{-1}`
  • :math:`K_C = 50\,\text{mol.m}^{-3}`

We derived earlier in the course that

.. math:: C_A = C_\text{TO}\left(\dfrac{F_A}{F_T}\right)\left(\dfrac{P}{P_0}\right)\left(\dfrac{T_0}{T}\right)

Assuming isothermal and isobaric conditions in the membrane:

.. math:: C_A = C_\text{T0}\left(\dfrac{F_A}{F_T}\right)

where :math:`F_T = F_A + F_B + F_C` and :math:`C_\text{T0} = \dfrac{P_0}{RT_0}`

Using all of the above derivations, we can set up our numerical integration. </rst>

MATLAB Python

In a file called membrane.m:

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File:Plots-MATLAB.png

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File:Plots-Python.png