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Progress of Yueneng Chemical’s 400,000-ton ethylene glycol project Author/Source: Modern Coal Chemicals Date: May 16, 2023 Clicks: 25 I. Overall project progress As of now, the construction is approximately 94% complete, with the civil engineering work being about 99% finished and the installation work at around 92% complete (including steel structures). The heat and power, air separation, circulating water stations, desalination station, comprehensive water supply station, and the 301 main transformer have been put into operation. Boiler No. 1 has been started up, and the air separation unit as well as the loading and unloading platforms have been delivered； The ethylene glycol lithium bromide unit, hydrogenation unit, and intermediate tank area have undergone preliminary handover inspections ； The coal chemical process water treatment station, PSA unit, slag treatment system, cryogenic separation unit, shift converter, refrigeration station of the Syngas Center, along with all the external pipeline corridors of the plant, have undergone preliminary handover inspections ； The high-pressure steam pipelines throughout the plant are under purging. 1. The total weight of the steel structure is approximately 33,000 tons; 32,900 tons have been installed, representing a completion rate of 99% ； The installation percentage for equipment items is 92%; the equipment that has not arrived and thus not been installed mainly consists of devices for the brine treatment system. 2. The cumulative completion percentage for the process pipelines across the entire plant is 99.2%. 3. 81% of electrical equipment installation has been completed. (Purification unit) II. Construction progress of various central projects (I) Syngas center 1. Air separation unit: Delivery has been completed. 2. Gasification unit: 98% of the equipment has been installed; 2% remains unfinished (coal conveying belts, slag conveying belts, and slag skimmers have not been installed) ； Pipeline welding: 99.42%, pressure testing: 87.57% ； 85% of the electrical and instrumentation work has been completed, while 40% of the anti-corrosion and insulation work has been finished. 3. Purification device: Equipment installation completed ； Pipeline welding 98.98% ； Pressure test 88.21% ； 80% of the electrical and instrumentation work has been completed, while 60% of the anti-corrosion and insulation work has been finished. 4. 99% of the pipeline construction in the plant’s external pipe galleries has been completed; 87% of the pressure testing has been finished, 90% of the electrical and instrumentation work is complete, and 50% of the anti-corrosion and insulation work has been carried out. Images: (Air separation unit) (II) Ethylene glycol facility: Equipment installation is complete; pipeline welding is over 98.2% finished, pipeline pressure testing is 85.66% complete, electrical and instrumentation work is 75% done, and anti-corrosion and insulation work is 45% completed. (Ethylene glycol plant) (III) Power center: Thermodynamic units – Boiler No. 1 is in operation ； The three checks and four adjustments prior to the ignition of Boiler No. 2 have been completed; ignition is scheduled for May 5th ； 3# boiler’s welds are 99% completed; work on the pre and post-water-pressure testing phases is in progress ； Installation of turbine-related equipment is complete, and 94% of pipeline welding has been finished ； Installation of desulfurization and denitrification equipment is fully complete, and all pipeline welding has been finished ； 95% of the equipment installation for the coal preparation system is complete; the remaining 5% (installation of the air film shed is in progress). (IV) Water Treatment Center 1. Desalination unit: Handover has been completed and it is in operation. 2. Thermoelectric air separation circulating water station: Handover completed and in operation. 3. Coal chemical process circulating water station: The project construction has been completed, and a preliminary handover inspection has been carried out. 4. Sewage treatment and reclaimed water reuse system: Equipment installation is complete; over 95% of pipeline welding has been finished, 45% of pipeline pressure testing and flushing have been completed, 90% of electrical and instrumentation work is done, and 65% of anti-corrosion and insulation work has been completed. 5. Concentrated brine system: (1) Design aspect: Evaporation crystallization design drawings; except for the civil engineering drawings, all other specialized drawings have not been prepared yet ； The construction drawings for the pre-treatment instrumentation have not been prepared yet; all other relevant drawings are available. The lack of these drawings has affected the overall project schedule.