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The pressure in the catalytic cracking reaction increases, the distillation pressure soars, the pressure at the compressor inlet drops sharply, and then it returns to normal automatically

2017-11-29View Original

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Recently, in catalytic cracking operations, there have been frequent instances of sudden increases in reaction pressure and distillation pressure, as well as sudden drops in the pressure at the compressor inlet, only for these conditions to return to normal automatically. It is suspected that there may be a blockage or liquid seal in the flow path from the top of the distillation tower to the compressor inlet. How can this issue be resolved?
Reply #22017-11-29
Increase the top temperature to see if it’s still blocked~ Could it be that the tower is experiencing liquid flooding: lol
Reply #32017-11-29
Pipelines of this thickness are less likely to get clogged. Additionally, the oil and gas stream at the top has to pass through two tanks – one for oil-water separation and another for oil-gas separation – before reaching the compressor inlet! If the liquid seals it, the air compressor will surge, which is very dangerous and results in almost no flow at the inlet{:3_46:}
Reply #42017-11-29
Well, maybe the cooler is clogged or the inlet liquid seal is problematic
Reply #52017-11-29
Well, maybe the cooler is clogged or the inlet liquid seal is problematic

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