事故信息 - 化工安全人

付 P 19910626 日本千叶 Lion公司精馏塔停车期间发生爆炸（编号：SG004923）

2026-04-26 17

一、时间地点

时间/日期: 1991-06-26

地点: 日本、其他、千叶

二、工厂介绍

公司介绍: Chiba Factory of Lion Co..Ltd

所在行业: 精细化工

三、事故介绍

事故类型: 爆炸

事故概述

1991年6月26日，狮子株式会社位于千叶县市原市的千叶工厂脂肪族表面活性剂制造厂的甲醇精馏塔在停工作业期间发生爆炸并引发火灾。

事故后果

死亡人数： 0人、受伤人数： 0人、疏散人数： 0人

经济损失： 0万

四、事故原因

直接原因类别: 反应失控

直接原因: 事故原因最终被估计如下：漂白过程中产生的MHP在中和过程中无法被降低，这归因于pH传感器失灵所导致的pH控制不当所致。因此，含有略高于正常操作条件下MHP含量的甲醇被输送到塔内。在总回流操作以及关闭程序中的保持操作期间，MHP会在特定塔盘处被浓缩。这种浓缩的MHP引发了自热分解反应，进而因热量积累而导致非热源爆炸事故。

根本原因类别: 工艺危害分析

根本原因

五、事故链

偏离类别: 浓度过高

后果类别: 热失控爆炸(E)

六、特征

涉及化学品: 甲基过氧化氢(CH3OOH, MHP)

涉及单元操作: 蒸馏

涉及工业设备: 塔器

涉及工业操作

涉及化学工艺/装置

运营阶段: 停车

七、调查报告

文档下载: 19910626 日本千叶 Lion公司精馏塔停车期间发生爆炸.zip

解锁金额 ¥2.00: 解锁资源

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