百亿级化工项目建设，取得突破性进展

Core Insights - The construction of the 1 million tons/year high-end chemical new materials project by Shaanxi Yunen Fine Chemical Materials Co., Ltd. has achieved a significant milestone with the successful installation of the epoxy ethylene reactor, marking a transition from civil construction to equipment installation [1][3]. Group 1: Project Overview - The epoxy ethylene reactor, a key component of the epoxy ethylene unit, has a diameter of 6.1 meters, a height of 22.4 meters, and a net weight of 759 tons, with a total lifting weight of 810 tons [3]. - The project is located in the Yushen Industrial Zone, covering an area of 1,500 acres, with a total estimated investment of 10.315 billion yuan [7]. - Upon completion, the project is expected to generate an annual revenue of approximately 8 billion yuan and produce nearly 10 types of chemical products [7]. Group 2: Technical and Operational Details - The reactor is a large tubular fixed-bed reactor with about 8,400 reaction tubes, designed to precisely control reaction temperatures, ensuring efficient catalyst utilization and significantly enhancing epoxy ethylene yield and product selectivity [3]. - The installation faced challenges such as equipment overweight, large size, limited space, and cold winter weather, but the project team maintained a meticulous work ethic, employing a "double machine lifting" operation technique [5]. - The construction unit, China Chemical Engineering Group's Sixth Construction Company, utilized a 1,600-ton crawler crane as the main lift and a 650-ton crawler crane for assistance, executing a series of high-precision operations to achieve the reactor's precise installation [5].