Why is the pressure in the lower tower of the air separation equipment higher than that in the upper tower?

Membrane separation is a technology that uses separation membranes as the core for the selective separation, concentration and purification of substances. The basic principle is to use the different rates of dissolution and diffusion of each gas component in the separation membrane at a certain pressure, and therefore the different rates of permeation through the fibre membrane walls due to the partial pressure d...

The liquid oxygen pump is a kind of low temperature liquid pump. It is used as the liquid oxygen circulating pump in the main condensing evaporator in the internal compressed air separation process to increase the pressure of liquid oxygen and output liquid oxygen.