The first large-scale unit of Jilin Petrochemical’s acrylonitrile production complex has completed its commissioning

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The first large-scale unit of Jilin Petrochemical’s acrylonitrile production facility has completed its commissioning process – CCCC’s efforts to bring the facility online｜The first large-scale unit of Jilin Petrochemical’s acrylonitrile production facility has completed its commissioning process 2025-07-05 21:04·Dianding Chenxing O On June 29, the air compressor, which is the key large-scale unit in Jilin Petrochemical’s acrylonitrile plant’s transformation and upgrading project with an annual production capacity of 260,000 tons, successfully completed its commissioning tests. Key parameters such as compressor vibration, turbine displacement, and operating temperature all meet the design standards, qualifying it for official operation. In the production of acrylonitrile, propylene, ammonia, and air constitute the three main raw material systems, with the air compressor serving as the \"heart\" that continuously supplies air as a raw material to the reactor. The air volume and pressure accuracy it delivers have a direct impact on the reaction efficiency of the propylene ammoxidation reaction as well as the quality of the product. Before the trial run, the project team at the factory organized technical experts in processes and equipment to conduct a thorough inspection of the air compressor system, ensuring that the relief valves were kept fully open, that the self-cleaning filter elements were in good condition, and that auxiliary devices such as the lubricating oil pump, electric drive unit, electric heater, and oil mist separator were functioning properly. Before starting up, carry out steam pipe warming operations, and continuously monitor changes in pipe temperature and pressure. Once the steam pressure and temperature reach the design values and meet the superheat requirements, it can be confirmed that the conditions for starting up are met. “During this test run, we conducted tests on safety systems such as the interlock logic for oil pumps, oil pressure interlock protection, and emergency shutdown response, to ensure precise operation of the control system. By analyzing the idle speed curve and verifying through both mechanical and electronic overspeed protections, we assessed the reliability of the unit under extreme operating conditions. ”The project team leader said.