Good News Keeps Coming—A New Milestone Achieved: The Liquefied Air Separation Unit Cold Box Erection for the Zhejiang Yuanjin Project, Constructed by CNASEC, Has Been Successfully Completed.
Release time:
2026-01-05
The project construction is surging with winter's momentum.
Good news keeps coming, ushering in a new journey.
Every second counts—go all out to meet the construction schedule.
Put projects first and answer with practical actions.
CNASEC Zhejiang Yuanjin Project Department
The rousing drumbeat of project construction resounds.
At the start of the new year, the air separation and air compression unit—part of the integrated project for the comprehensive utilization of alkane resources undertaken by Zhejiang Yuanjin New Materials Co., Ltd., and constructed by China Air Separation Engineering Co., Ltd. (hereinafter referred to as “China Air Separation”—has successfully completed the lifting and installation of two nitrogen-producing air separation cold boxes (hereinafter referred to as the “Zhejiang Yuanjin Project”). This successful completion of this critical milestone has laid a solid foundation for the subsequent equipment installation, commissioning, and trial operation of the project, propelling the project’s construction into a new phase of rapid advancement and dynamic progress.
Uphold our mission and responsibilities, ensuring stable nitrogen supply.
As the first nationally designated industrial project in Zhejiang Province to have its site selected independently under a national guarantee program, the Zhejiang Yuanjin Alkane Resource Comprehensive Utilization Integrated Project shoulders the important mission of driving regional industrial upgrading. As the core equipment in large-scale chemical projects, the air separation unit’s construction progress directly affects the overall project’s pace of advancement. In this air separation and air compression unit undertaken by China Air Separation, the two nitrogen-producing air separation cold boxes can collectively produce up to 20,500 Nm³/h of nitrogen gas—making them the critical key equipment for ensuring the stable operation of the subsequent alkane comprehensive utilization processes.
Professionally and thoroughly prepared for quick and precise lifting.
Facing numerous challenges such as overlapping construction activities between lifting operations and civil engineering units, as well as limited effective working space, the Chinese air separation project team adhered to the philosophy of “putting the project first and delivering results through practical actions.” They engaged in repeated discussions with the installation company, conducted rigorous and precise calculations in advance for crane positioning, simulated lifting paths, and meticulously refined the coordination plan for concurrent work with the civil engineering unit. They also clearly defined the sequence of operations and safety boundaries, thereby providing all-around assurance for the safe and orderly advancement of the lifting operations.
At the lifting site, two cranes exerted their precise force. Under the professional organization of the project team and the coordinated efforts of the construction workers, two nitrogen-generation air separation cold boxes, each weighing 73 tons, were smoothly lifted, accurately positioned, and safely lowered one after another. The entire process was tense yet orderly, executed in one seamless flow, taking just three hours. This fully demonstrated the project team’s outstanding professional expertise and highly efficient collaborative capabilities.
The successful lifting and installation of this cryogenic tank once again highlights China Air Separation’s advanced technology, mature experience, and meticulous craftsmanship in the air separation field—qualities that embody its commitment to delivering high-quality projects. Moving forward, China Air Separation will continue to uphold its mission of becoming a world-class, technology-driven engineering company, rigorously advancing subsequent project construction with the highest standards and quality. We will spare no effort to ensure the early completion and commissioning of the project, thereby contributing our strength as a central state-owned enterprise to help Zhejiang Yuanjin establish itself as a leading hub for alkane manufacturing and to promote high-quality, sustainable economic development in the Shaoxing Shangyu region.
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