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← ScienceWhich risk increases relating pressure when exceeding the maximum energy yield for a catalytic cracking reactor?
A)Increased hydrocarbon cracking rate
B)Reduced catalyst deactivation rate
C)Uncontrolled exothermic thermal runaway✓
D)Enhanced product selectivity
💡 Explanation
An uncontrolled exothermic thermal runaway can occur because exceeding the energy yield limit leads to a dramatic increase in temperature beyond control capabilities creating a "Positive Feedback Loop." Therefore, reactor damage is far more probable, rather than improved cracking or selectivity.
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