Discussion on the partial pressure of olefins
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At a pressure of 0.36 Mpa and 40 degrees Celsius, C4 and C5 will cool down. The pressure in the water washing tower is 0.8 Mpa; not much cooling has occurred for C4 and C5. This is mainly due to the issue of partial pressure, just like the boiling point of mixtures; I’m looking for some deeper understanding on this topic within the community. Thank you all
Your understanding is correct, it’s the relationship of hydrocarbon partial pressures. Another point is that some of the hydrocarbons returning from the water wash tower to the second stage tank will flash, thereby returning to the system again, which can also reduce compressor power consumption.