In a hydrodesulfurization reactor, what risk increases when operating evaporators with high liquid levels containing dissolved salts in a refinery environment?

💡 Explanation

High liquid levels concentrates the dissolved salts near the heating surfaces inducing the mechanism of "under-deposit corrosion" within the evaporator tubes because mass transfer limitations impede corrosion inhibitor access; therefore accelerated corrosion occurs, rather than enhanced conversion due to deactivated catalysts elsewhere.

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