Will the pressure drop in the reactor of the unit cause damage to the catalyst inside the reactor?
Thread Content
The hydrogenation reactor in petrochemical hydrogenation units is the main equipment in such units. The pressure difference within the hydrogenation reactor is an important process parameter for these units. According to available information, if the pressure difference in a diesel hydrogenation reactor reaches 0.4–0.5 Mpa, it may cause damage to the catalysts inside the reactor. I’m not quite sure what this means Can the pressure difference between the reactor inlet and outlet cause damage to the catalyst? Please share your thoughts, thank you
I don’t know; I guess that an excessive pressure drop can lead to too high local gas velocities, which in turn undermines the effectiveness of the catalyst packing space and results in a decline in performance
Excessive pressure drop can indeed cause damage to the catalyst. If the pressure difference between the inlet and outlet of the reactor exceeds a certain threshold, it increases the mechanical load on the catalyst, leading to the fragmentation of catalyst particles or deformation of their structure, which in turn affects their activity and service life. Therefore, controlling a reasonable pressure difference is very important for protecting the catalyst and ensuring reaction efficiency. .
This post was last edited by *amingteda on 2025-3-18 11:11. They are interdependent. Diesel has high viscosity; at the same gas flow rate, the pressure drop is greater ； High pressure also means high bed resistance or damage and crushing of the particles. Therefore, the mechanical strength of the pellets must be tested for shaped pellets. If the pressure drop reaches 4–5 kg, it is indeed excessive; this places extremely high demands on the mechanical strength of the particles, and it’s very likely that the particles will break or crumble.