Regarding the fate of the liquid phase in the liquid separation tank at the inlet of the new hydrogen compressor
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Our unit is for heavy oil hydrocracking and upgrading; it mainly processes wax oil, and features reaction refining as well as first and second stage cracking, with a total of three reactors； The hydrogen used is reformed hydrogen, and the new hydrogen compressor features four stages of compression. Why does the liquid phase from the inlet separator of the first stage go to the high-pressure vent tank, while the liquid phases from the separators of the other stages go to the cold light ends separator? I just started learning this and don’t quite understand it; please help me out! !
I’m not in this industry, but based on my personal understanding, the pressure is low in the first stage, and the condensate consists mainly of materials with high boiling points; the pressure is higher in the subsequent stages, and the condensate consists mainly of materials with low boiling points. Is it considered from this perspective?
Is no one here to help answer? Could some senior give me some advice?
The pressure in the primary inlet separator tank should be lower than that of the separator tanks in the subsequent stages
I know this; the key question is why the destination of the condensate in the liquid separation tank differs
Our company specializes in the production of cold low-pressure oil separators, including both the primary separation tank and the subsequent separation tanks. We’re not sure what your approach is – after all, it seems like the condensates are all the same. Moreover, the condensates from the later stages have their pressure reduced using control valves, and then they are combined with those from the primary separation tank before being sent to the low-pressure separator
The primary pressure is low; it cannot be discharged to the cold light ends