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The super-large PSA hydrogen production unit for the 1.8 million tons per year ethylene glycol project of the Shaanxi Coal Group Yulin Chemical Company’s demonstration project for the selective utilization of coal to produce new chemical materials, which was overseen by Southwest Chemical Engineering Research and Design Institute Co., Ltd. (hereinafter referred to as “Southwest Institute”), was completed first among all the facilities in the plant on March 26, 2022. Pressure swing adsorption for hydrogen production, as a large-scale hydrogen purification process, is an important component in large refineries and coal chemical plants. In recent years, with the development of China’s petroleum refining industry and modern coal chemical industry, the volume of hydrogen used in these facilities has been increasing continuously. The 1.8 million-ton ethylene glycol project of Shaanxi Coal Yulin Chemical Company is part of Shaanxi Coal Group’s “Demonstration Project for the Production of Chemical New Materials through the Differential Utilization of Coal.” Using coal as raw material and employing coal slurry gasification technology, this project goes through processes such as gasification, shift reaction, low-temperature methanol washing, PSA hydrogen production, and deep-cold separation of CO, in order to ultimately produce ethylene glycol. The PSA hydrogen production unit accompanying this project is equipped with proprietary technology, comprehensive design, and key equipment provided by the Southwest Research Institute. The unit’s total capacity for processing feed gas amounts to 570,000 Nm3/h, while its total hydrogen production capacity is 440,000 Nm3/h; upon completion, it will be the largest coal-to-hydrogen PSA unit in the world to date.