LANSI Heavy Equipment completed and delivered the low-pressure tower for the Shaanxi Coal Yulin Chemical Coal High-Efficiency, Clean Transformation Demonstration Project

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On the eve of New Year’s Day 2026, the first unit of the low-pressure tower for Phase 1 of the olefins, aromatics, and advanced processing project as part of the 15 million tons per year clean and efficient conversion demonstration project for coal, undertaken by Lanxi Heavy Equipment for Shaanxi Coal Group Yulin Chemical Co., Ltd., was completed and delivered ahead of schedule. This laid a solid foundation for the efficient progress of the subsequent equipment manufacturing. Through the systematic integration of coal pyrolysis, coal/semi-coke gasification, and downstream processing technologies, this project produces four categories of high-value-added products, including high-performance materials, battery electrolyte solvents, biodegradable materials, and special oils. Ultimately, it generates chemical products such as polyolefins, polyesters, polycarbonates, and polyether polyols, thereby facilitating the advanced, diversified, and low-carbon development of the coal chemical industry. Lanshi Heavy Equipment undertook the project involving 52 pieces of equipment, with a maximum diameter of 8.9 meters, a length of 110 meters, and a weight of 1,809 tons. Among these, 17 pieces of equipment that exceeded size limits were processed on-site by the mobile factory branch. The first unit delivered, the low-pressure tower, is a key piece of equipment for the project’s methanol distillation unit, responsible for the distillation process in the atmospheric/low-pressure sections. Lanshi Heavy Equipment has worked closely with Shaanxi Coal Yulin Chemical to overcome challenges such as technical complexity and tight deadlines. By optimizing the production process, coordinating resource allocation, and strengthening quality control throughout the entire process, it has significantly reduced the manufacturing cycle time. From the procurement and inspection of raw materials, the precision machining of key components, to overall assembly and welding, non-destructive testing, and final testing, every stage of the process is strictly controlled. As a result, manufacturing and inspection were completed 130 days ahead of the scheduled deadline, setting a new record for Lansi in the production and delivery of large-scale chemical equipment of this type.