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Damage Analysis of Service Exposed Reformer Tubes in Petrochemical Industries

机译：石化行业服务暴露的重整管损坏分析

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Accelerated creep or stress rupture data is used for remaining life assessment for life management studies of elevated temperature components, e.g. for reformer tubes where packed nickel catalysts are used for synthesis of hydrogen, ammonia etc. This research has become a regular task because of large range of time for failure (3 to 15 years) compared to designed life (11.4 years or 100,000 hours) and huge loss associated to damage, production and safety hazards. Utilization of appropriate inspection during plant shut down has been strategic short term life assessment. Tests have been typically done by high temperature mechanical properties, micro-structure analysis and accelerated creep. Inspection of micro-cracks, hot spot formation, carburization/metal dusting for inner wall and oxidation, tube diameter increment for outer wall inspection have been traditional symptoms of expiry of tubes after service exposure. Aim of this review has been to study damage analysis of reformer tube in response to so wide time frame for failures and accidents involved, even after stipulation of designed time schedules.
机译：加速蠕变或应力破裂数据用于剩余寿命评估，以进行高温组件的寿命管理研究，例如高温。用于重整管，在重整管中使用填充的镍催化剂来合成氢，氨等。由于与设计寿命（11.4年或100,000小时）相比，失效时间（3至15年）范围大，因此这项研究已成为一项常规任务。与损坏，生产和安全隐患相关的巨大损失。在工厂关闭期间采用适当的检查方法已成为战略性的短期寿命评估。通常通过高温机械性能，微观结构分析和加速蠕变来进行测试。检查微裂纹，热点形成，内壁渗碳/金属粉尘和氧化，外壁检查的管径增加一直是暴露于服务后管过期的传统症状。这篇综述的目的是研究重整管的损坏分析，以应对如此宽泛的故障和事故时间表，即使在规定的时间表后也是如此。

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