An index-based method for assessing exothermic runaway risk

被引:10
作者
Kao, CS [1 ]
Duh, YS
Chen, TJH
Yu, SW
机构
[1] Chang Jung Christian Univ, Dept Occupat Safety & Hlth, Tainan, Taiwan
[2] JinTeh Jr Coll Med Nursing & Management, Miaoli, Taiwan
[3] Ind Technol Res Inst, Ctr Environm Safety & Hlth Technol Dev, Hsinchu 31015, Taiwan
关键词
D O I
10.1002/prs.680210406
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This paper proposes a simplified mathematical and tabular method for assessing the risk of exothermic runaway reactions, based on the calculated hazard index. Intrinsic elements, such as reactivity stability, exothermic enthalpy, etc., are presented as measures of severity of a potential runaway event. Similar v, extrinsic elements, such as risk and safety factors associated with operating conditions, are considered as measures of the likelihood of an event. All intrinsic and extrinsic parameters, with proper weightings, are converted into a runaway risk index (RRI). The chemical process risk. can therefore be quantified and divided into six levels based on the normalized RRI extremely high, high, moderate, mild, low, and very low. They can be further classified into tolerable and intolerable risks. Sample runs on methanol-acetic anhydride esterification, cumenebydroperoxide decomposition, and decompositions of ammonium nitrate, are presented to illustrate the validity of the method.
引用
收藏
页码:294 / 304
页数:11
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