Handover of the new unit for Shaanxi Coal Yulin Chemical’s 1.8 million tons per year ethylene glycol project completed

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The new unit of Shaanxi Coal Yulin Chemical’s 1.8 million-ton ethylene glycol project was handed over. Author/Source: Gasification World. Date: March 30, 2022. Clicks: 8. On March 26, the substation in Area 9 of the purification unit, as well as the PSA system and sulfur storage facility for Shaanxi Coal Yulin Chemical’s 1.8 million-ton ethylene glycol project operated by Hualu Company, were successfully handed over, laying a solid foundation for the complete handover of the purification unit. To ensure that the three main components – substation in Area 9 of the purification unit, the PSA unit, and the sulfur storage facility – pass the owner’s inspection successfully in one go, the project team planned ahead and organized the relevant construction units to conduct three rounds of self-inspections over a period of one month. These inspections covered aspects such as the physical structure of the project, documentation related to step-by-step acceptance processes, test and inspection reports, as well as standards for proper construction practices, all in accordance with high-quality delivery requirements. Any issues identified were promptly addressed through thorough rectifications. After thorough preparation, on March 26, seven inspection teams from the owner’s side conducted acceptance inspections for the three main items, carrying out a comprehensive review of the physical assets on site as well as the project documents. They ultimately agreed unanimously that all three main items had passed the acceptance tests, allowing for the intermediate handover. Currently, the project is in full swing with pressure testing of process pipelines and cable laying and wiring. Taking this as an opportunity, the project department will continue to uphold the spirit of hard work, actively leverage the role of Party member vanguard posts and task forces, ensure the successful achievement of all set goals, and contribute to the high-quality development of the enterprise through the value delivered by the projects. Project Overview: The Yulin Chemical plant of Shaanxi Coal Group, which is involved in the production of ethylene glycol, has a capacity of 1.8 million tons per year for ethylene glycol production. The construction is not carried out in phases; the entire facility is divided into three units. Each of the units responsible for ethylene glycol synthesis and distillation has a capacity of 600,000 tons per year. The system is highly integrated, resulting in significant economies of scale. The Shaanxi Coal Group Yulin Chemical Company’s demonstration project for the utilization of coal in various ways to produce new chemical materials is currently the largest coal chemical project under construction in the world. The project covers an area of approximately 13 square kilometers, with a total planned investment of around 126.2 billion yuan. It is capable of processing about 24 million tons of coal per year. The project includes 27 processing units along with associated utility systems; these mainly involve the low- and medium-temperature pyrolysis of 15 million tons of coal, the production of 5.6 million tons of methanol, 1.8 million tons of ethylene glycol, 2 million tons of olefins, as well as downstream products derived from these raw materials. Among them, the first phase of Project 1, which involves an ethylene glycol production facility with an annual capacity of 1.8 million tons, covers an area of approximately 4.4 million square meters. The total investment required for this project is estimated at around 26.5 billion yuan. It is currently the largest coal-based ethylene glycol production plant under construction in the world, with completion scheduled for June 2021 ； Phase 1, Stage 2 involves the construction of a facility capable of producing 5.6 million tons per year of methanol and 2 million tons per year of olefins, along with related processing units; completion is scheduled by the end of 2023. Phase II of the project focuses on coal pyrolysis and is also divided into two stages. The first stage involves an industrial demonstration facility for 1.2 million tons per year of pulverized coal pyrolysis and 500,000 tons per year of advanced processing of coal tar; completion of the construction is scheduled for June 2021 ； In the second phase, the scale of pyrolysis will be increased to 15 million tons, and the coal tar industry chain will be expanded to produce aromatic hydrocarbons as well as downstream products derived from arylenes. Construction is scheduled to begin in 2022, with all construction work to be completed by the end of 2025.