Regenerator to settler catalyst transfer issue? ? ?
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What are the reasons why a sufficient reserve cannot be built up in the settler over a long period when the regenerator transfers catalyst to it? ? ? Additionally, is the cyclone separator pressure drop an indicator of its efficiency? ? ?
What is the structure of the centrifuge in the reactor? It’s a problem if it’s not possible to determine the material level; it will be disastrous if the fluid leaks into the distillation tower. The swirl pressure drop can be regarded as an indicator of whether the operation is normal.
Worries about the second floor are very necessary. The centrifugal pressure drop is an intuitive parameter indicating whether the centrifuge is operating properly. However, at the beginning of operation, the operating conditions differ significantly from those under normal production, making it difficult to determine this value. Additionally, it is unclear whether there are issues with the rotor’s operation, or whether the slide valve is set to an insufficient opening degree When changing the catalyst, caution is usually exercised to prevent plugging of the lift pipe. Check whether the slide valve is stuck; large lumpy impurities may be present in the catalyst, causing poor material discharge. You can pay more attention to the density in the pre-raising section, as well as the temperatures at various points in the riser and settler, in order to assess the condition of the catalyst.