What is catalyst deactivation?
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What is catalyst deactivation? Why is passivation needed? ? ?
The passivation of a catalyst is intended to reduce its catalytic capacity. There are generally two situations regarding catalyst deactivation: 1. Deactivation before operation – This is done to prevent the excessive activity of the new catalyst from leading to loss of control and to ensure that the reaction proceeds smoothly. 2. Shutdown passivation is intended to prevent the reaction from continuing after removal; exposure to air accelerates this reaction, and it serves to prevent oxidation and spontaneous ignition.
Thank you for your helpful explanation; more exchanges are welcome
What about catalyst sulfidation: lol
A specialized catalyst, right? Isn’t it said that catalysts are sensitive to sulfur?
In the production of synthetic ammonia, the feed gas needs to be desulfurized
His poison is my honey; his weeds are my treasures.