China National Petroleum has obtained a patent for a helium concentration device used in carbon dioxide-containing natural gas, which can effectively remove methane, ethane, nitrogen, and hydrogen to produce high-concentration helium

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According to news from August 13, 2025, **information from the Intellectual Property Office shows that China National Petroleum Engineering Corporation and China National Petroleum & Natural Gas Group Co., Ltd. have obtained a patent titled “A Helium Concentration Device for Natural Gas Containing Carbon Dioxide,” with the approval announcement number CN223213833U; the application was filed in October 2024.**   The patent abstract indicates that this utility model relates to the field of natural gas helium enrichment technology, and specifically discloses a helium enrichment device for natural gas containing carbon dioxide. It includes an inlet pipe, a first-stage membrane separation system, a carbon dioxide removal system, a second-stage membrane separation system, a dehydrogenation unit, a demethanization and impurity removal system, and a helium storage system, all connected in sequence ； The intake pipe is connected to an external delivery pipe ； The external transfer pipe is connected to the primary membrane separation system and the carbon dioxide removal system. This practical new design is capable of effectively removing methane, ethane, nitrogen, and hydrogen, thereby yielding helium at a high concentration.   According to Tianyancha, China National Petroleum Engineering Corporation was established in 1981 and is located in Beijing; it is a company that operates primarily in the field of civil engineering. The registered capital of the enterprise is 2,409.562 million RMB. According to the big data analysis conducted by Tianyancha, China National Petroleum Engineering Corporation has invested in 12 companies in total, participated in 5,000 bidding projects. In terms of property-related information, there are 10 trademark records and 1,083 patent records; additionally, the company holds 65 administrative licenses.   China National Petroleum Corporation, established in 1990 and headquartered in Beijing, is a company primarily engaged in the exploration and production of oil and gas. The registered capital of the enterprise is 486,900 million RMB. According to big data analysis by Tianyancha, China National Petroleum Corporation has invested in 113 companies in total, participated in 5,000 bidding projects. In terms of property-related information, there are 1,446 trademark records and 5,000 patent records; additionally, the company holds 28 administrative licenses.