Major Overhaul of the Ammonia Synthesis System at Shanxi Coking Chemicals

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Major Overhaul of the Ammonia Synthesis System at Shaanxi Shanjiao Chemical Industry Co., Ltd. Author/Source: Shaanxi Shanjiao Chemical Industry Co., Ltd. Date: 2020-11-09 Clicks: 28 On November 7th, the planned overhaul for the alcohol-ammonia production unit at Shaanxi Shanjiao Chemical Industry Co., Ltd. for the year 2020 began; at 8 a.m., the synthesis-related work in that unit got underway in an orderly manner. This maintenance work will be completed within 7 days, with the internal and external inspection of the liquid ammonia spherical tanks, which represent major hazard sources, the replacement of the synthetic water coolers, the maintenance of the synthesis tower, the replacement of the methanation catalyst, and the repair of the pressure swing adsorption programmable valves being the key tasks in this process. Documents such as \"Schematic Diagrams of Process Preparations and Blind Flange Installation/Removal Before Internal and External Inspections of Liquid Ammonia Storage Tanks\", \"Synthetic Ammonia Shutdown Plan\", \"Plan for Filling the Methanation Catalyst and Carrying Out Heating and Reduction Processes\", \"Organizational Chart for Planned Maintenance Activities in the Alcohol-Ammonia Workshop\", and \"Inspections of Synthetic Ammonia Pipelines and Equipment serta Scheduling of Employee Shifts\" were issued one after another. The leadership in the alcohol-ammonia production department implements strict oversight at various levels. When formulating work plans, they adhere to a systematic and thorough approach, focusing on the principles of \"improving quality and efficiency, as well as reusing waste materials.\" As a result, the maintenance plans are detailed, comprehensive, and well-thought out. Careful diagnosis and analysis of the equipment’s operating conditions, past problems, and failure mechanisms are conducted to develop a scientific, reasonable, and cost-effective maintenance plan. In terms of maintenance quality control, responsibilities are clearly defined to ensure unified management of the safety, quality, and progress of the maintenance process. Ensure that every task is fully under control.