Thermal runaway behavior and hazard evaluation of cumene hydroperoxide mixed separately with four products under adiabatic conditions coupled with risk matrix method

2021 ◽  
Author(s):  
Chang‐Fei Yu ◽  
Shang‐Hao Liu ◽  
Wen‐Tao Wang ◽  
Rui‐Jie Xu
Keyword(s):  
Matrix Method ◽  
Cumene Hydroperoxide ◽  
Thermal Runaway ◽  
Hazard Evaluation ◽  
Risk Matrix ◽  
Adiabatic Conditions

Effects of stirring rate for thermal runaway reaction in cumene hydroperoxide manufacturing process using calorimetric techniques

2011 ◽  
Vol 106 (1) ◽  
pp. 243-248 ◽  
Author(s):  
Hung-Cheng Chou ◽  
Sheng-Hung Wu ◽  
Chung-Cheng Chiang ◽  
Jao-Jia Horng ◽  
Jen-Hao Chi ◽  
...  
Keyword(s):  
Manufacturing Process ◽  
Cumene Hydroperoxide ◽  
Thermal Runaway ◽  
Runaway Reaction ◽  
Stirring Rate

scholarly journals The stability of a near-adiabatic Endex batch CSTR reactor

2001 ◽  
Vol 43 (1) ◽  
pp. 59-75 ◽  
Author(s):  
A. C. Mcintosh ◽  
B. F. Gray ◽  
G. C. Wake ◽  
R. Ball
Keyword(s):  
Stable Solution ◽  
Thermal Stabilization ◽  
Developed Countries ◽  
Thermal Runaway ◽  
Design Stage ◽  
Batch Reactors ◽  
Adiabatic Conditions ◽  
Significant Area ◽  
Continuously Stirred Tank Reactor ◽  
The Developed Countries

AbstractMany tens of serious incidents involving reactors occur in the developed countries each year. The disaster at the chemical plant in Bhopal, India in 1984 was particularly notable where a thermal runaway process led to more than 3000 tragic fatalities from the cloud of extremely toxic methyl isocyanate that boiled out of a storage tank. This signalled the design of special types of chemical reactors to reduce the risk of thermal runaway by planning (at the design stage) integral safety and thermal stabilization mechanisms. The Endex CSTR (continuously stirred tank reactor) proposed by Gray and Ball [3] involves a reactor in two parts with heat exchange allowed between them. The two parts of the reactor operate side by side in tandem, such that the thermal runaway of one part is offset by an endothermic reaction in the other reactor—hence the term ‘endex’.It is found that the adiabatic endex system has a large region of parameter space where the operation can be made safe. However adiabatic conditions rely on the continuous supply of reactants to the endothermic side of the reactor, for operation of the system. The risks involved are such that it is always safer to operate batch reactors in a non-adiabatic mode. Thus we consider the limiting case of the approach to adiabatic conditions where although the mathematics produces no oscillatory causes for instability, yet there is a narrow but significant area where the stable solution branch is lost and consequently a persistent and unexpected region of instability in what otherwise appears to be a simple CSTR system.

Thermal Hazard Evaluation of Cumene Hydroperoxide (CHP) Using Isothermal and Heating Method

2015 ◽  
Vol 4 (1) ◽  
pp. 103-106
Author(s):  
Sheng-Hung Wu ◽  
Pao-Wen Liu ◽  
Ying-ting Lin ◽  
Chiao-Li Shih ◽  
Tung-Tin Wu
Keyword(s):  
Cumene Hydroperoxide ◽  
Hazard Evaluation ◽  
Thermal Hazard ◽  
Heating Method ◽  
Thermal Hazard Evaluation

Improvement and Application of Risk Matrix

2013 ◽  
Vol 357-360 ◽  
pp. 2650-2654 ◽  
Author(s):  
Chao Jue Yi ◽  
Chao Yu Zheng ◽  
Qi Hao Fu
Keyword(s):  
Risk Assessment ◽  
Matrix Method ◽  
Risk Evaluation ◽  
Investment Project ◽  
Evaluation Methods ◽  
Assessment Method ◽  
Risk Matrix ◽  
Project Risk ◽  
Risk Investment

On the basis of the analysis of investment project risk evaluation methods, this article mainly discusses the risk matrix method in the application of risk assessment in risk investment project and constructs the risk matrix for risk assessment in risk investment project and designs risk matrix based on the process of risk assessment, hoping to provide a scientific, rational, easy assessment method for risk assessment in risk investment project.

Evaluation of Investment Risk in International Engineering Project Based on Improved Risk Matrix Method

2011 ◽  
Vol 255-260 ◽  
pp. 3887-3892
Author(s):  
Jin Liu ◽  
Xuan Neng Gao
Keyword(s):  
Matrix Method ◽  
Investment Decision ◽  
Evaluation Index System ◽  
Risk Level ◽  
Investment Risk ◽  
Risk Matrix ◽  
Engineering Project ◽  
Analytic Hierarchy ◽  
Risk Probability ◽  
Risk Acceptability

In this paper, risk acceptability evaluation and risk weight and improved risk level were added in original risk matrix method according to its shortcomings and practicality and need of evaluation of investment risk in international engineering project. A model based on improved risk matrix method was put forward to evaluate investment risk in international engineering project. Firstly, investment risk evaluation index system of international engineering project was established. Secondly, level of risk factors were decided by risk impact level and risk probability scope, borda ordinal value was calculated to form judgment matrix, analytic hierarchy process was introduced to calculate risk weight. Synthetic risk level was determined by product of quantized value of risk level and corresponding risk weight. Risk acceptability evaluation was decided by risk impact level and risk probability scope. Finally, a case study was presented to verify the feasibility of the model which would provide a reliable basis for the investment decision.

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