事故信息 - 化工安全人

免 F 20170421 某烷基化装置管线液态烃泄漏（编号：SG00003914）

2025-10-10 726

一、时间地点

时间/日期: 2017-04-21

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: 释放/泄漏

事故概述: 2017年4月21日，某烷基化装置循环异丁烷控制阀副线阀发生泄漏，液态烃喷出迅速气化。

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: 原因是烷基化装置循环异丁烷线内介质为异丁烷及微量酸性介质（由于反应器馏出物经过碱洗精制至分馏塔，其中微量的硫酸脂经高温分解产生微量的酸性介质）长时间对阀体冲刷、腐蚀，使阀体减薄，造成阀体处出现沙眼泄漏

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

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: 烷基化工艺

运营阶段

事故信息检索

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