Is it necessary to reduce the pressure when a temperature spike occurs during catalytic hydrogenation?
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Is it necessary to reduce the pressure when a temperature spike occurs during catalytic hydrogenation?
Personally, I think blood pressure reduction is necessary in this situation. Firstly, this allows the hydrogen partial pressure to be reduced quickly, in order to prevent damage to the activity of the hydrogenation catalyst ； Secondly, the material flow decreases, resulting in a reduction in reactants, which in turn prevents abnormal temperature rises. There are three aspects to pressure reduction: first, the pressure of circulating hydrogen decreases, and the supply of fresh hydrogen is reduced ； Second, the pressure of the materials entering the reactor decreases, resulting in a reduced amount of raw material entering the reactor ； Third, the reactor pressure drop decreases, which reduces the space velocity of the unit operation. In addition, the reactor’s heat removal measures should also be enhanced to suppress runaway temperature.