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Which risk increases when elevated hydrogen partial-pressure lowers catalytic reactor efficiency?

A)Supports higher rate of methanation
B)Accelerates thermal runaway condition
C)Enhances carbonaceous fouling resistance
D)Decreases catalyst surface area loss

💡 Explanation

High H2 partial pressure favors reactions consuming H2 due to Le Chatelier's principle; therefore, enhanced methanation rate occurs, rather than increased thermal risk, because surface is consumed.

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