Methanol plant high-pressure separator
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Our company’s operation manual states that too high an inlet temperature in the high-pressure separator can cause the liquid level to rise. I just don’t understand this: I hope someone with more experience can explain what’s going on
Gas-liquid entrainment will occur, causing the liquid level to rise.
Before entering the high-pressure separator, methanol has its temperature reduced to around 40 degrees Celsius before separation takes place. As the inlet temperature rises, methanol does not cool down, resulting in an insufficient separation effect and increased pressure; this may be due to the gradual accumulation of liquid and rising liquid levels.
Reply 1# tianj: The increase in temperature is due to the reduced heat exchange efficiency caused by paraffin. At this time, the filter of the control valve may be clogged. So the liquid level might rise.