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← ScienceWhich consequence results when a packed-bed reactor lacks sufficient heat dissipation?
A)Catalyst deactivation through thermal runaway✓
B)Lowered reactant conversion from back-mixing
C)Increased selectivity to undesired products
D)Reduced equilibrium constant causing reversal
💡 Explanation
Insufficient heat dissipation inhibits the ability to remove heat generated by an exothermic catalysis reaction, initiating a thermal runaway; because the increased temperature accelerates the catalysis reactions, accelerating heat generation, leading to destructive catalyst deactivation by sintering, coking, or collapse, therefore only deactivation occurs rather than increased side-products under proper temperature control.
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