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The main structure of the gasification and purification substation for the 400,000-ton/year ethylene glycol production unit of Yulin Energy’s coal-to-ethylene glycol project has been completed. Author/Source: Huahua Net Coal Chemicals. Date: August 8, 2021. Clicks: 13. On August 6, the construction of the main structure of this substation was successfully completed for the first phase of the project, which has a capacity of 1.2 million tons per year for producing ethylene glycol, with a focus on the 400,000-ton/year production unit, operated by Shaanxi Yulin Energy Chemical Materials Co., Ltd. It is reported that the foundation structure of this project is a standalone foundation under columns, the design service life is 50 years, and the seismic resistance rating is level 4. The underlying bearing stratum consists of fine sand, the concrete grade of the foundation cushion is C15, while the grade of beams, slabs, columns, etc. below the ground surface is C35. The gasification and purification substation primarily supplies power to the electrical equipment used in the gasification and purification processes. The first phase of the project to produce 400,000 tons per year of ethylene glycol as part of Shaanxi Yulin Energy Group Co., Ltd.’s 1.2 million tons per year coal-based ethylene glycol production capacity, is a project that marks the start of operations at the coal-based clean fuel base and high-end chemical materials base located in the Qingshui Industrial Park of the Yushen Industrial Zone. The total planned land area for this project is 1,711 mu, with an investment of nearly 6 billion yuan required; the construction period is expected to be 30 months, and completion and operation are scheduled for June 2022. The project construction includes a gasification unit, a purification unit, an H2/CO separation unit, an ethylene glycol unit, etc. The utility systems and supporting auxiliary facilities include: 3×350t/h high-temperature and high-pressure circulating fluidized bed boilers + 2×30MW back-pressure steam turbine generator sets, air separation units, circulating water stations, desalination stations, storage and transportation facilities, sewage treatment plants, etc. The gasification unit employs the Collin powder gasification technology and includes 2 powder gasifiers ； The ethylene glycol plant utilizes the Zhongke Yuandong ethylene glycol technology.