Helium neon krypton and xenon rare gases exist in trace content inside atmospheric air, and ordinary air separation units cannot realize effective enrichment and extraction of these high value gases. Independent rare gas extraction system needs to be matched on side lines of air separation units to separate and purify trace rare gas components. This article sorts out necessary core module configurations of standard rare gas extraction system.

Rare gas extraction system connects side line outlets of air separation units to collect mixed gas containing trace rare gas components. Low temperature enrichment tower concentrates dispersed rare gas elements from large volume mixed air into high concentration crude rare gas mixture. This pretreatment unit greatly reduces processing volume of subsequent rectification links and cuts overall equipment investment of rare gas extraction system.

Cryogenic rectification module inside rare gas extraction system adopts ultra low temperature distillation technology to separate single rare gas products from crude mixed gas. Different boiling points of helium neon krypton and xenon support classified extraction of each rare gas inside multi layer rectification towers. Precision temperature control system maintains stable separation environment for rare gas extraction system all year round.

After rectification separation, rare gas flows into catalytic impurity removal equipment of rare gas extraction system to eliminate residual nitrogen oxygen and hydrocarbon impurities. High efficiency adsorption filters remove trace solid particles inside gas to reach electronic grade high purity standard. Complete impurity removal design ensures rare gas finished products meet strict aerospace and semiconductor manufacturing requirements.

Rare gas extraction system equips high pressure insulated storage tanks and automatic filling stations to store and pack purified rare gas products. Constant pressure filling structure avoids gas purity fluctuation during tank filling operation. Modular storage filling unit can expand production capacity of rare gas extraction system according to market rare gas order demand growth.