Should a counter-rotating shaft not be installed in the centrifugal compressors of catalytic reforming units?
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Should a counter-rotating shaft not be installed in the centrifugal compressors of catalytic reforming units?
Theoretically, the reforming reaction system is a large loop and this is not necessary; however, as the catalyst’s lifespan increases, the reactor pressure drop rises and the outlet pressure increases, which may lead to surge. Additionally, during startup, due to the long length of the pipelines, the outlet flow may not be able to return to the inlet immediately, potentially causing surge
The SEI design principle is to avoid counteraction lines.
I think this issue can be explained in another way: reformation pre-hydrogenation circulators【recirculating machines】do not require a two-return-one-pressure control valve either, because since it is a circulator, all the fluid at the outlet ends up returning to the inlet; thus such a valve is not necessary. The same principle applies to reformation circulators – there is no need for a flow control valve for the return stream.