Hailianfeng Gas Co., Ltd. won the bid for Jinhong Gas’ BOG helium extraction and helium liquefaction project

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Recently, Shanghai Lianfeng Gas Co., Ltd. won the bid for the BOG helium extraction and helium liquefaction project of Jinhong Gas Co., Ltd. (stock code: 688106), and will supply it with a complete set of equipment for the extraction and liquefaction of helium-rich natural gas liquefaction non-condensable gases (BOG). In light of the project’s characteristics of tight deadlines, high standards, and strict requirements, Shanghai Lianfeng has assembled a core technical team to advance work on preliminary design, equipment manufacturing, and project construction. As a strategic and scarce resource used in fields such as aerospace, semiconductor manufacturing, and medical magnetic resonance imaging (MRI), China has long faced difficulties due to a shortage of this resource. The helium content in natural gas is generally below 0.05%, which is far lower than the 7.5% level found in some gas fields in the United States; therefore, traditional methods for extracting helium are highly uneconomical. Shanghai Lianfeng has innovatively adopted BOG helium extraction technology, focusing on the flash gas generated during the LNG production process. In the LNG cryogenic liquefaction process, helium, which has an extremely low boiling point, cannot be liquefied; as a result, it naturally accumulates in the BOG, creating conditions for its extraction. This project employs a combined process of cryogenic cooling + low-temperature adsorption + ultra-low-temperature expansion to enable the equipment to operate across extreme temperature ranges from 20°C to -269°C, raising the technical level of domestic helium extraction and liquefaction equipment to a new height.