After compression, the helium-containing feed gas enters the adsorption tower of the PSA-He unit that is in the adsorption state. Through the adsorbent, impurities such as H₂O, CO2, N2, CH₄, C2+, and CO in the helium gas are adsorbed, while the unadsorbed helium flows out from the top of the tower as the product, yielding product helium with a purity of 99%–99.999%.
Technical Features
Low adsorption pressure and low energy consumption;
High product helium purity;
High degree of unit automation and convenient startup and shutdown;
High helium recovery rate.
Unit Scale
Flow rate: 10–2000 Nm³/h
Purity: 99%–99.999%
Recovery rate: 90%–99%
