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Which risk increases when heterogeneous catalysts in a packed bed reactor experience channeling?

A)Runaway reaction due to reduced efficiency
B)Increased catalyst attrition from higher pressure
C)Decreased product selectivity from slow reactions
D)Enhanced heat transfer due to turbulent mixing

💡 Explanation

Runaway reaction risk increases because bypassing flow reduces reactant contact during catalytic activity, impairing the heat removal mechanism; therefore, the heat is not effectively removed, rising dramatically, rather than maintaining control by design.

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