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← ScienceWhich risk significantly increases when molecular sieve beads deactivate?
A)Increased feedstock conversion costs
B)Reduced reactor kinetics enhancement
C)Downstream catalyst poisoning events✓
D)Elevated reactor outlet temperature
💡 Explanation
Downstream catalyst poisoning increases, because molecular sieves remove contaminants through selective adsorption, therefore, preventing unwanted compounds from entering downstream processes but deactivated sieves cause breakthrough, rather than proper contaminant capturing.
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