Discussion
Arrange the operations of a batch reactor cycle in order.
1. hold for the reaction time
2. charge the reactants
3. cool, discharge and clean
4. heat to reaction temperature
Answer: B
Correct answer: 2 - 4 - 1 - 3
The order is fixed by the operation: charge the reactants, bring them to temperature, hold for the reaction time, then cool, discharge and clean ready for the next batch. Everything except the third step is dead time, which is precisely what the previous items are about.
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