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On August 9, 2025, the primary and secondary compressors of Line 190a of the EVA unit in Guangxi Huayi Energy Chemical Company’s methanol-to-olefins and downstream processing integration project were successfully lifted, marking the peak phase of equipment installation for this project. The compressor being lifted this time is the most critical imported equipment in the EVA facility; it is 5 meters long, 3.5 meters wide, 2 meters high, and weighs 27 tons ； The secondary compressor can be regarded as the \"heart\" of the entire system. It is designed to operate at a pressure of 330 Mpa, measures 6 meters in length, 10 meters in width, and 2.3 meters in height, with a net weight of 224 tons. A 650-ton crawler crane is used for lifting it throughout the installation process. I. The primary and secondary compressors, as key equipment for the reaction gas pressurization cycle in EVA plants, require installation precision at the millimeter level. Faced with challenges such as the large size of the equipment, high requirements for installation precision, as well as continuous high temperatures and heavy rainfall, the Phase 3 project team took proactive and scientific approaches, coordinated resources from all relevant parties, and repeatedly refined the construction plan. It worked closely with various involved units on key aspects such as equipment transportation, site clearing, and the deployment of lifting machinery. Additionally, it ensured that the equipment was stored under conditions specified in the foreign supplier’s documents, thus laying a solid foundation for the successful installation of the equipment. During the critical lifting phase, the project’s technical team monitored the fluctuations in lifting data on-site throughout the process, adjusting the tensioning schemes for the rigging as needed, and ultimately completed the lifting task with precision at the millimeter level. At present, the overall construction of the project is progressing steadily according to the planned milestones, with efforts being made to further accelerate the development of the petrochemical industry chain and help build a **-level Qinzhou petrochemical industry base.