Inspection and evaluation of petrochemical production units

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1. Equipment safety assessment refers to determining whether, under the current material conditions and existing process anti-corrosion measures, the corrosion rate remains within acceptable limits. What measures can be taken to reduce the corrosion rate if it exceeds the allowable range? 2. Assessment of weak points in the installation: In accordance with the relevant regulations of Sinopec Corporation, an actual corrosion rate of more than 0.25 mm/a indicates that the material grade used at that location is insufficient, and it is necessary to upgrade the material. The parts where the corrosion rate is above the limit and the risk of failure is high are the weak points of the device. Generally, a material upgrade plan for the next cycle should be formulated. 3. Process adaptability assessment: In petrochemical plants, changes in the properties of raw materials and process conditions occur frequently. Especially during each major plant overhaul, certain process modifications are carried out. It is necessary to determine what impact these changes will have on the equipment and pipelines, whether new problems will arise, and what measures should be taken to prevent them.