Maoming Tianyuan Petrochemical Co., Ltd. has obtained a patent titled “Integrated Device for Purifying Hydrogen from Hydrogen-Containing Dry Gas from Refineries”
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According to news from August 7, 2025, **information from the Intellectual Property Office shows that Maoming Tianyuan Petrochemical Co., Ltd. has obtained a patent titled “Integrated device for purifying hydrogen from hydrogen-containing dry gas in refineries,” with the approval announcement number CN223184329U; the application was filed in August 2024. The patent abstract indicates that this utility model discloses an integrated device for purifying hydrogen from hydrogen-containing dry gas in refineries, which includes a feed gas treatment unit, a temperature-variable adsorption unit, a membrane separation unit, and a pressure-variable adsorption unit connected in sequence. This practical new design primarily employs a combined process technology based on membrane separation, supplemented by temperature-variable adsorption and pressure-variable adsorption. By integrating membrane separation with these two types of adsorption, it offers advantages such as low investment costs, minimal space requirements, and flexible operation. After purification of the catalyzed hydrogen-containing dry gas, the purity of the resulting hydrogen exceeds 99.5% by volume, with a hydrogen recovery rate of not less than 85%. According to Tianyancha, Maoming Tianyuan Petrochemical Co., Ltd. was established in 2016 and is located in Maoming City. It is a company that is primarily engaged in the processing of petroleum, coal, and other fuels. The registered capital of the enterprise is 100 million RMB. According to the big data analysis provided by Tianyancha, Maoming Tianyuan Petrochemical Co., Ltd. has invested in 2 companies, participated in 36 bidding projects, and holds 11 patent records. In addition, the company possesses 448 administrative licenses.
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