The "Cryogenic Purification and Neon Removal Device" independently developed by Anhui Wanrui Cold Electric Technology Co., Ltd. recently completed engineering acceptance at the helium extraction project site in Yan'an, Shaanxi Province. The device produces helium with a purity of 99.99997% (6N9 grade), and the neon impurity content is below 0.3 ppm. As the first domestic device to extract 6N9 grade ultra-pure helium from natural gas, this achievement marks a significant breakthrough in China's helium extraction from low-abundance natural gas. Chief Engineer Zhang Xuehua of Wanrui Cold Electric stated that the process technology indicators have reached an "internationally leading level" as certified by a third-party institution, signifying China's leap from having no high-purity helium engineering applications to achieving excellence, providing strong technological support for the country's strategic resource security.
