Helium extraction and dehydrogenation device and process method for natural gas

• Main Authors: TONG SHUYUE, ZHAO LIUKANG, LI GUANG, QI NIU, GUO DONGYAO, ZHENG ZHUO, ZHONG XIANKANG, HE CHAOMING, ZHOU LEI, ZHOU ZHENHUA, QI XINGXING, GAO JIFENG, LI JUANPING, FAN WEI, LI DONGLIN
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention discloses a natural gas helium extraction and dehydrogenation device and process method.The natural gas helium extraction and dehydrogenation device comprises a pretreatment device, the pretreatment device is connected with an electrochemical hydrogen separation device, the electrochemical hydrogen separation device is connected with a hydrogen storage alloy device, and flash steam is subjected to primary concentration through a cryogenic process or a pressure swing adsorption process and an organic fiber membrane; the humidified flash steam passes through an electrochemical hydrogen separation device, hydrogen with the hydrogen content being lower than 1% and the purity being 99.9%-99.999% in the flash steam is obtained, the flash steam obtained after crude dehydrogenation enters a hydrogen storage material tank through a pipeline, and refined helium with H2 being smaller than 1 ppm is obtained. 本发明公开了一种天然气提氦脱氢装置及工艺方法，包括包括预处理装置，所述预处理装置连接有电化学氢分离装置，所述电化学氢分离装置连接有储氢合金装置，将闪蒸气通过深冷工艺或变压吸附工艺、有机纤维膜进行初级提