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【Daily Question】Hydrogen production and hydrogenation technology version 20190729

2019-07-29View Original

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Participation prize: 1 Fortune, Correct answer prize: 3 Fortune. Multiple-choice question: Metals such as iron, magnesium, sodium, and calcium have a relatively minor impact on the activity of catalysts; they mainly deposit in ( ), causing an increase in pressure drop, which requires an additional layer of protective material for protection. A. Middle and lower bed layers ; B. Catalyst active site ; C. Migration along the bed layer ; D. Surface of the catalyst bed. Answer: D Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands.

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