Operation cycle of wax oil hydrogenation and reasons for excessive increase in reactor differential pressure
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Dear experts, what is the operating cycle of the wax oil hydrogenation unit in your plants? Is the main cause of the high differential pressure metal deposition or coking? What is the typical iron ion content in various crude oils? How much is there of Ni+V?
I have not worked on wax oil hydrogenation, but I have experience with diesel hydrogenation; the following is for reference only: The operating cycle of a diesel hydrogenation unit is generally 2-3 years. The high differential pressure in the reactor bed is mainly caused by coking and catalyst damage, and this can be addressed through skimming operations. In daily operation, care should be taken to avoid overheating, and the raw materials must not contain water.