Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 1: Mole Balances

Batch System Mole Balance Derivation

General Mole Balance on System with Volume, V:


No inflow or outflow-FA0=FA=0



Assumption: Well mixed


Rearranging and integrating with limits
   t = 0       NA = NA0
   t = t1      NA = NA1

Multiplying by -1 and changing the limits of integration

This equation gives the time t1 necessary to reduce the number of moles in a batch reactor from NA0 initially to NA1.

 

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