Chapter 5: Isothermal Reactor Design: Conversion
What Four Things are Wrong with this Solution?
Problem
The elementary gas phase reaction A + 2B --> C is carried out in a packed bed reactor. Calculate the exit conversion from a PBR packed with 800 kg of catalyst. The feed is stoichiometric.
Additional Information
Solution
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1) The rate law is incorrect. It should be: 
2) The concentrations are incorrect, the feed is stoichiometric.
Therefore: 
3) The volume change was not included.
4) The equation for y is incorrect. There is volume change and 
can only be used when 
. Therefore, the form of the momentum balance that must be used is 
Corrected Solution
