Helium Extraction Unit for Rocket Fuel - Leading China Suppliers & Factory Solutions

Directly extracting helium from natural gases is highly costly due to its very low content in typical gas fields. However, the BOG (boil-off gas) generated during LNG storage and noncondensate gases from natural gas liquefaction contain over 1% helium, making BOG-based extraction highly valuable and economically viable.

Fullcryo utilizes a combination of advanced separation methods including Cryogenic method Separation (cryogenic distillation and cryogenic condensation) and Membrane Separation to achieve efficient LNG recovery and high-purity helium gas extraction.

The system features a self-developed high-speed helium gas bearing turbine expander for rapid temperature reach, an ultra-low leakage rate all-aluminum plate-fin heat exchanger to minimize heat waste, an efficient oil filtration system, and pneumatic cryogenic control valves for enhanced accuracy, all integrated with intelligent control technology.

First, methane is recovered through cryogenic distillation, leaving a mixture of nitrogen, helium, and hydrogen. Most nitrogen is removed via condensate separation to produce crude helium (>75%). Hydrogen is then removed through a catalytic bed to obtain raw helium (>95%). Finally, the raw helium enters a freeze-out purifier inside the liquefier cold box to freeze out remaining impurities before final liquefaction.

Fullcryo offers end-to-end support for helium extraction projects, including experienced design and R&D, modernized equipment manufacturing, professional installation & commissioning, and comprehensive project consulting services.