Analysis of the reasons for high pressure difference in the hydrogenation unit bed
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We are operating a two-stage hydrogenation unit, and the pressure difference across the second reactor bed has reached 1.0 MPa. What could be the cause of this?
What hydrogenation unit? What about the raw materials? Were there any abnormal operations before the high pressure difference occurred? Is it rising slowly, or rising suddenly?
It is a gasoline hydrogenation unit; the process proceeds gradually, with no significant changes in the raw materials, and there were no abnormal operations prior to the occurrence of the abnormal phenomenon.
Is the catalyst coked, or is it possible that the catalyst has been partially crushed?
This results in a high density of some of the catalysts, creating a pressure difference