分子筛蒸汽加热器泄露事故及处理

Molecular Sieve Steam Heater Leak Accident and Processing

空分装置分子筛系统因蒸汽加热器列管材质问题导致泄露,蒸汽进入污氮气侧使分子筛再生时无法达到指标,分子筛出口二氧化碳分析超标,造成冷箱内换热器"冰堵"系统负荷无法维持,影响了空分及后系统的正常运行,详细介绍了事故处理过程,原因分析,事故预防的具体方法和步骤。

Air separation plant molecular sieve column system for steam heater tube material causes leakage problem, steam runs into the dirty side of nitrogen, makes exceed carbon in the analysis of molecular sieve export while the molecular sieve regenerate, causes heat exchanger inside cold box ＂ice block＂ unsustainable system load, and affects the normal operation of air separation and after system. The accident treatment process, cause analysis, specific methods and steps of accident prevention were introduced.