Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor ?
Correct answer: A. Temperature should be high in the beginning and decreased towards the end of the reaction
- A. Temperature should be high in the beginning and decreased towards the end of the reaction
- B. Very low temperature should be used throughout the reaction
- C. Very high temperature should be used throughout the reaction
- D. None of these
Explanation
For an exothermic reversible reaction, high temperature is useful near the inlet for rapid reaction, but temperature should fall toward the outlet to favour equilibrium conversion. Therefore, the optimum profile starts hot and decreases along the reactor.
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