A new psa adsorption separation device

Abstract

A new type of PSA adsorption separation device, which belongs to the field of adsorption separation, includes two adsorption towers, the two adsorption towers are connected through a pressure equalizing pipe, switch valves are arranged at both ends of the pressure equalizing pipe, and a fixed pipe is arranged between the two switch valves. , the fixed tube is coaxial with the pressure equalizing tube, the fixed tube is provided with a coaxial fixed shaft, both ends of the fixed shaft are rotated to install the first helical gear, and the opposite sides of the two first helical gears are fixedly installed with the compression impeller, The fixed pipe is located between the two compression impellers, and the compression impellers are respectively sealed and rotated connected with the fixed pipe. The invention uses the gas flow during pressure equalization to convert its kinetic energy into mechanical energy and store it to supply energy for the desorption of the adsorbent in the later stage; secondly, the process is combined with temperature-swing adsorption, and the impurity desorption is accelerated by heating; the adsorption tower is used to connect In this way, the boosting time of the adsorption tower in the regeneration state can be shortened.

Description

technical field [0001] The invention belongs to the field of adsorption and separation, in particular to a novel PSA adsorption and separation device. Background technique [0002] Pressure swing adsorption, or PSA for short, is a new type of gas adsorption separation technology, which uses adsorbents to selectively adsorb gases to achieve separation of gas mixtures and regeneration of adsorbents. The adsorption capacity of the adsorbent to the adsorbate increases with the increase of the pressure, and decreases with the decrease of the pressure. At the same time, in the process of decompression, the adsorbed gas is released to regenerate the adsorbent without external heat supply. However, the traditional pressure swing adsorption consumes a long time and energy during desorption, and still has a large room for improvement. SUMMARY OF THE INVENTION [0003] The present invention provides a novel PSA adsorption and separation device to solve the defects in the prior art. ...

AI Technical Summary

Problems solved by technology

The adsorption amount of the adsorbent to the adsorbate increases with the increase of the pressure, and decreases with the decrease of the pressure. At the same time, in the process of decompression, the adsorbed gas is released to regenerate the adsorbent without external heat supply. However, the traditional pressure swing adsorption takes a long time and consumes more energy for desorption, so there is still a lot of room for improvement.

Images