A puzzling issue regarding UOP continuous reforming units
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In our company’s UOP parallel and tandem reactors with regeneration systems, there is a trend of fluctuations in the pressure difference at the inlet and outlet of the two reactors, and this trend closely corresponds to the frequency changes of the regenerator circulation fan (which is controlled using variable frequency technology). Has anyone seen it? What’s the reason?
Let me learn a bit about it; ours have four layers stacked on top of each other. I mainly work with aromatic hydrocarbons, and I’m not very familiar with this area
Is the frequency conversion of the regenerative fan automatic or cascade? It’s usually set to a manual position; it remains fixed without any adjustment. Otherwise, if it gets angry, the flow rate will fluctuate back and forth, right?
Do you experience pressure fluctuations? Are the fluctuations in the fan caused by pressure fluctuations in the regenerator, which are in turn resulting from pressure fluctuations?
Are there fluctuations in catalyst elevation? Mine now is an IFP with four counter-parallel ones
The pressure in the gas-liquid separator of this unit is stable at 0.24 MPa, and the backpressure is also stable; the variation range for both is very small. The reaction pressure and regenerator pressure fluctuate very little.