Fluctuations in hydrogen flow rate in residue hydrogenation process
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The residue hydrogenation circulator is driven by a turbine. The flow rate of the mixed hydrogen in the previous cycle was very stable. During maintenance, the thrust bearing at the back of the compressor was removed for inspection and then reinstalled. After the system was restarted, the temperature of the thrust bearing remained at 100 degrees, whereas it used to be around 50 degrees. Additionally, the flow rate of the mixed hydrogen kept fluctuating, ranging from 150,000 cubic meters to 160,000 cubic meters. However, these fluctuations stopped after the cold oil supply was reduced. Does anyone know what’s causing this issue?
Is the excessive resistance due to cold oil causing fluctuations, pressure fluctuations? Also, check if the pressure difference increases when cold oil is added
The pressure also fluctuates, and so does the pressure difference