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Q 1 . A tubular packed be reactor is used for the following reaction: A ( g ) + 2 B ( g ) C
Q A tubular packed be reactor is used for the following reaction:
The reactor is fed at at a pressure of The volumetric flowrate into the reactor is
and the mole fractions of A and are and respectively. The reactor is cooled
by water on the shell side boiling at The tube radius is and the overall heat
transfer coefficient is
Arrhenius parameters:
Heat of reaction:
Ideal gas heat capacity data is in :
a Derive two ODEs that can be used to determine conversion and temperature versus reactor
volume. Also derive the equations that need to be evaluated as part of the ODEs. These
equations should match your codespreadsheet used in the next sections.
b Plot temperature and conversion of A vs volume up to What is the final conversion?
What is the maximum temperature, in reached in the reactor? Solve your ODEs
numerically. Attach our codespreadsheet used for the integration and plotting.
c Repeat b with a tube radius of Plot temperature and conversion of A vs volume up
to What is the final conversion? What is the maximum temperature reached in the
reactor? No need to reattach your codespreadsheet It will be assumed that it is the same
as part b with the tube radius changed.
d Does the difference between b and c make sense? Why might c be preferred over b
Explain in a few sentences.
e If the profile in part c is preferred, how many tubes are required so the maximum fluid
velocity is How long are the tubes? What is the total heat transfer area?
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