Although some natural gas fields contain helium in China, the helium content is very low and therefore it is very costly to directly extract helium from natural gases. A composition test of the noncondensate gases generated during natural gas liquefaction and the BOG (boil-off gas) generated during LNG storage shows a helium content of over 1% which is valuable for extraction. For that reason,Fullcryo has developed the technology of LNG plant-based helium extraction from BOG which uses cryogenic distillation and cryogenic condensation method to recover LNG and acquire high-purity helium gases.It is an effective way for the comprehensive development of helium resources.
Cryogenic Helium Extraction Device From BOG in LNG plant (BOG-HED)
BOG-HED primarily includes helium liquefier, BOG compressor, BOG cold box, hydrogen removal system, control system, etc.
