Kaifeng Air Separation Group Co., Ltd. was the first to achieve the domestic production of the first batch of CO-H2 cryogenic separation units

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On August 1, 2015, Kaifeng Air Separation Group Co., Ltd. started up and commissioned the CO-H2 cryogenic separation unit designed to support the production of 220,000 tons of ethylene glycol at Yangmei Shenzhou. On August 2, 2015, qualified products such as CO and hydrogen-rich gas were produced, with all product qualities meeting or exceeding the design specifications. This unit includes a molecular sieve pre-purification system, a CO-H2 separation cryogenic tank, a CO compressor, etc.; it requires that the purity of the CO product be greater than 98.5% and the hydrogen content be less than 100 ppm. It is the first domestically produced CO-H2 cryogenic separation unit to be successfully put into operation in China to date. CO-H2 cryogenic separation units have long represented a gap in China’s low-temperature industry; the market for such units in China has been dominated by foreign manufacturers for a long time, forcing users to bear high economic costs as a result. The CO-H2 cryogenic separation unit, independently developed by Kaifeng Air Separation Group Co., Ltd., has been successfully put into operation, filling a gap in China’s industry and indicating that the country’s low-temperature sector now has the full capability to design and manufacture CO-H2 cryogenic separation units on its own.