Group 1 - The core viewpoint of the article highlights the successful delivery of a super-large ethylene oxide (EO) reactor manufactured by Sinopec Nanjing Chemical Industry Co., Ltd. for Rongsheng Petrochemical, marking it as the largest EO reactor the company has ever produced [1] - The reactor measures 21.35 meters in length, 9.97 meters in diameter, and weighs 1,054 tons, serving as a critical component for Rongsheng Petrochemical's 300,000 tons/year PEO facility [1] - The project faced significant challenges, including a compressed construction timeline of 12 months, which is nearly 2 months shorter than the conventional cycle for similar EO reactors, and stringent precision requirements for welding and assembly [1] Group 2 - To tackle the challenges, the company formed a special task force that innovatively employed a "segmented anti-deformation + synchronous stress release" process to control the flatness of the reactor's components to within 4.8 millimeters [1] - The project also prioritized the optimization of component processing and assembly error coordination, addressing the difficulties posed by the reactor's heavy weight through the coordination of four thousand-ton hydraulic jacks for safe relocation within the factory [1][2] - In the transportation phase, the team pre-planned the route due to the equipment's height exceeding conventional pipeline restrictions, adjusting two supports for on-site assembly to overcome transportation bottlenecks [2]