事故信息 - 化工安全人

免 F 20200227 某石化企业分馏塔管束泄漏起火（编号：SG00003714）

2025-10-10 1384

一、时间地点

时间/日期: 2020-02-27

地点: 中国

二、工厂介绍

公司介绍

所在行业: 石油化工

三、事故介绍

事故类型: 火灾

事故概述: 2020年2月27日，某石化企业重催装置分馏塔顶循抽出管线因介质腐蚀、冲刷导致管体减薄，最终导致管体开裂，发生泄漏，泄漏点距地面约42米、距塔顶约10米，泄漏介质为汽油与柴油混合物，柴油的引燃温度为230-338℃。泄漏介质沿管线向下流淌，遇分馏塔高温部位（油浆返塔线,310℃）引起自燃，火势顺势燃烧至泄漏部位，导致了着火的发生。

事故后果

死亡人数：人、受伤人数：人、疏散人数：人

经济损失： 0万

四、事故原因

直接原因类别

直接原因: 管道局部出现酸性溶液环境导致管道腐蚀减薄，减薄的管道在内部压力、支撑与管道间作用力等综合作用下发生局部撕裂。

根本原因类别

根本原因

五、事故链

偏离类别

后果类别

六、特征

涉及化学品: 汽油与柴油混合物

涉及单元操作

涉及工业设备: 管道

涉及工业操作

涉及化学工艺/装置

运营阶段

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