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Since the start of construction on March 1 for the first phase of Shaanxi Yulin Energy Group Co., Ltd.’s project to produce 1.2 million tons per year of ethylene glycol, with an initial capacity of 400,000 tons per year, the company has, in the face of various challenges such as a tight schedule, heavy workload, and multiple concurrent construction tasks, adjusted its construction plan accordingly while ensuring safety and quality. By making concerted efforts, strengthening support mechanisms, organizing work meticulously, and working day and night, the company has accelerated the progress of the project, sparking a vigorous pace of construction activities. To date, over 1,200 workers have been deployed, along with more than 70 types of machinery. A total of 46 major civil engineering tasks have begun, and the construction of the main facilities has started in full swing; the site is bustling with activity as efforts are made to achieve a decisive success. Ethylene glycol plant: 60% of the circulating water pipelines and 80% of the fire protection water pipelines in the underground pipeline network within the plant’s boundary area have been installed ； Concrete pouring for the hydrogenation framework foundation, lithium bromide foundation, and PSA foundation has been completed ； Excavation of the foundation soil for the compressor base and the distillation frame 2 has been completed, and concrete pouring is in progress. Vaporization unit: The vaporization unit is responsible for pouring concrete below the framework and carrying out soil backfilling ； Complete the pouring of the concrete for the foundation of the lower frame for coal grinding and drying ； Complete the pouring of concrete for the lower frame and equipment foundation pads for slag water treatment. The purification unit has been modified, and the concrete pouring for the foundation slabs of the heat recovery framework, the pump house foundation, and the equipment foundations is complete ； Pouring of the connection beams for the foundation pedestals of Low-Temperature Methanol Wash Units 1# and 2#, as well as the foundation pedestal of Tower 122T-003, has been completed ； The concrete pouring for the foundation of the PSA hydrogen production adsorber and the CO2 compressor building has been completed. The pouring of the foundations for the main cooling tank and secondary cooling tank in the air separation unit, as well as the foundation pads for the compressors and the foundation pads for the compressor building, has been completed ； Casting of the ring beam below +0 meter in the cabinet room completed ； Brick wall construction below +0 at the substation is completed ； The pouring of the foundation for the lower pedestal of the liquid oxygen storage tank is complete. The pouring of the foundation pedestals for Boilers No. 1 and No. 3 in the thermodynamic power plant has been completed; foundation bolts are currently being installed ； Installation of foundation rebar and formwork for Boiler No. 2 ； Concrete pouring for the chimney shaft foundation is complete ； The concrete foundation for the car’s coal hopper pad has been poured, and the reinforcement is currently being processed and installed. Utilities: 90% of the primary pipelines along Roads No. 3, No. 4, and No. 7 in the factory area have been installed and backfilled. Concrete pouring for the sump pool of the thermoelectric air separation circulating water station, the substation, and the short columns of the membrane workshop at the desalinated water station has been completed ； Reinforcement binding for the pool walls of the coal chemical process circulating water station’s suction pool and the neutralization pool has been completed. 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 ethylene glycol production capacity, is a project that marks the commencement of operations at the coal-based clean fuel and high-end chemical materials manufacturing bases located in the Qingshui Industrial Park of the Yushen Industrial Zone. The total planned land area for this project is 1,711 mu; the estimated investment amount is 6.243 billion yuan, with 532.6274 million yuan allocated to environmental protection measures. The construction period is 30 months, with completion and operation expected by June 2022. The 400,000 tons per year ethylene glycol production facility in Yulin Energy Phase I uses coal blends as raw material. The crude synthesis gas is divided into two streams after entering the shift reactor; one stream of crude synthesis gas undergoes heat recovery before being sent to low-temperature methanol washing to remove sulfur and CO2 impurities. The purified synthesis gas is then subjected to deep cryogenic separation to produce CO, which is used in the ethylene glycol production plant. The hydrogen-rich gas obtained from deep cryogenic separation is sent to a pressure swing adsorption unit for H2 extraction ； Another stream of crude syngas undergoes two stages of isothermal shift reaction, after which it is sent to low-temperature methanol washing to remove sulfur and CO2 impurities. It then enters the PSA-H2 unit together with the hydrogen-rich gas obtained through cryogenic separation, to produce H2 for use in the ethylene glycol plant. Ethylene glycol synthesis is a technology of Zhongke Yuandong. Dimethyl oxalate (DMO) is synthesized from CO via an oxidative coupling reaction, and dimethyl oxalate is then hydrogenated to produce ethylene glycol. 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 ethylene glycol plant utilizes Zhongke Yuandong’s ethylene glycol technology. Source: Project QuickQuickQuick