What is the typical pressure drop in a distillation column?
Thread Content
What is the typical pressure drop in a catalytic fractionation tower? And what is it when the plant is operating at its maximum capacity?
The pressure drop in the fractionation tower is generally around 0.5 MPa.
It can’t be that high; the pressure for catalytic reactions is only around 0.2
With these 2.1 million tons of catalyst, the pressure drop in the distillation column is approximately 40 kPa
The latest catalytic cracking units use methods to reduce the pressure drop across the trays, increase the pressure at the compressor inlet, and thereby lower energy consumption. In our unit, the reaction pressure is controlled at 120 kPa, the top pressure of the distillation tower is 90 kPa, and the pressure drop across the distillation tower is over 20 kPa
The catalytic pressure drop for 120 is around 35 kPa, while that for 60 is 40 kPa; it should be mostly in the range of 30–45 kPa
It’s generally around 0.5; it also depends on the liquid level at the bottom of the tower – if that level is high, the pressure drop will definitely be greater
Yes, to reduce the pressure drop and increase the pressure at the inlet of the compressor; we have new devices that have been optimized
The liquid level definitely cannot be kept too high; it is only at an appropriate liquid level that the magnitude of the pressure drop can be determined