Gas-liquid equilibrium problem in absorption towers
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The absorption tower is filled with stainless steel structured packing; the liquid phase is blown in from the bottom, while it drips down from the top of the tower. The gas and liquid come into full contact, allowing carbon dioxide to be removed from the gas phase. The gas phase then exits the tower through its top, while the liquid phase exits through its bottom. The pressures in both the gas and liquid phases are around 5 Mpa. Question: How is it possible to prevent the liquid phase from being blown out of the top of the tower by the gas phase? Is it because of a tray?
There must be sufficient space at the top of this filler for gas-liquid separation. There must also be a reasonable calculation model for the gas-liquid flow velocity in the actual filler.
The pressure drop must not be too large. The adjustment range should be small when tuning parameters, especially regarding the adjustment of gas phase temperature and pressure. The height of the tower was definitely taken into account in the design. A humble opinion
The density of the liquid phase is very high; it is difficult for the gas phase to push the liquid phase in the opposite direction. This can be calculated using formulas, and one formula that comes to mind is one that relates the kinetic energy of the gas phase to the potential energy of the liquid phase.
This method does work, but the kinetic energy of the gas phase flowing at a pressure of 5 Mpa is certainly greater than the potential energy of the liquid phase; the pressure of the liquid phase becomes zero once it enters the tower, right?