Safety Assessment on Hydrogen Peroxide for Storage and Transportation Based on Runaway Scenario

Wu, De Jian; Qian, Xin Ming; Huang, Ping

doi:10.4028/www.scientific.net/AMM.79.215

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HomeApplied Mechanics and MaterialsChemical, Mechanical and Materials EngineeringSafety Assessment on Hydrogen Peroxide for Storage...

Safety Assessment on Hydrogen Peroxide for Storage and Transportation Based on Runaway Scenario

Abstract:

Hydrogen peroxide is a very versatile reagent for many industrial processes. Nevertheless, it is very sensitive to impurities that can catalyze its decomposition violently. Combining the recent year’s hydrogen peroxide explosion accidents, this paper seeks to establish the evaluation model for its safe storage and transportation. Firstly, the runaway scenario that can serve as a basis for the assessment of the thermal risk was briefly described. Secondly, the adiabatic temperature increase () and the pressure for closed systems were used as the severity of the assessment criteria. Both closed and open systems were discussed. Thirdly, the time to maximum rate (TMR_ad) was presented as the probability of occurrence of the scenario. Finally, the established model was exemplified by two examples both with and without contamination. The results show that at 20°C the severity of 30(wt.) % H₂O₂ is critical and a small amount of Fe³⁺ (12.7mg∙L^-1) reduces the TMR_ad of 30(wt.) % H₂O₂ by almost a factor of eleven. This approach can assess the safety of hydrogen peroxide for storage and transportation in advance.

Info:

Periodical:

Applied Mechanics and Materials (Volume 79)

Main Theme:

Chemical, Mechanical and Materials Engineering

Edited by:

Yiyi Zhouzhou and Qi Luo

Pages:

215-220

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.79.215

Citation:

D. J. Wu et al., "Safety Assessment on Hydrogen Peroxide for Storage and Transportation Based on Runaway Scenario", Applied Mechanics and Materials, Vol. 79, pp. 215-220, 2011

Online since:

July 2011

Authors:

De Jian Wu, Xin Ming Qian, Ping Huang

Keywords:

Hydrogen Peroxide, Risk Assessment, Runaway Reaction, Storage, Transportation

Export:

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Price:

$38.00

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References

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Authors: Tian Guo Zhou, Zheng Yi Jiang, Jing Lin Wen, A. Kiet Tieu

Abstract: AA6201 with main compositions of Mg-0.5 wt % and Si-0.5 wt %, is a typical electric conductive alloy which shows remarkable combination of high strength and high electric conductivity after heat treatment. Cold working and aging treatment process have a significant effect on its mechanical properties and conductivity. Shearing/Cooling Rolling process (SCR) was proposed to produce the feedstock for all aluminum alloy conductor. The effects of cold drawing on the properties of the alloy produced by SCR process were investigated. There are two methods used in the study, one is the cold drawing and aging heat treatment (CDAH) to produce the wires, the feedstock prepared by SCR and on-line solution, the other is the feedstock prepared by SCR and on-line solution-aging heat treatment plus cold drawing (AHCD). Results show that the AHCD can improve the properties of products due to sub-structural hardening. The tensile strength and equivalent conductivity of the alloy are 315 MPa and 55.03 % IACS respectively, and are much better than those characteristics of the alloy produced by the conventional process (295 MPa, 52.5-53.0 % IACS).

349

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Authors: Peng Lin Zhang, Tian Dong Xia, Guo Dong Zhang, Li Jing Yan

Abstract: The combustion process of Mg-TiO2 system was preliminarily investigated from three aspects of thermodynamics, reaction kinetics and the technological parameters. The result indicates that the adiabatic temperature of Mg-TiO2 system is between 2060K and 2140K because the major existent modalities of TiO2 is the rutile and anatase, this meets the empirical criterion that the SHS reaction will be self-sustaining; The solid-solid reaction occurs at about 767K; Ti powders can be produced only when the ratio between Mg and TiO2 arrives at 2.9:1; The higher the vacuum, the more complete the reaction; The combustion temperature arrives at its peak when the pressure of green compact arrives at 250MPa; the velocity of the combustion wave increases with the augmentation of the pressure of green compact. So the proper control of the technological parameters can change the reaction temperature, reaction rate and the components of reaction products.

1086

The Effects of Nanofluid on NH₃H₂O Bubble Absorption Performance under Adiabatic and Non-Adiabatic Conditions

Authors: Wei Dong Wu, Chang Wei Pang, Si Mei Liu, Hua Zhang

Abstract: The object of this paper is to study the effects of nanofluid on NH₃/H₂O bubble absorption performance under adiabatic and non-adiabatic conditions. Mono nano Ag with the concentration of 0.02wt% was used as the enhancement medium, and the absorption performance experiments under the heat insulation and water cooling for absorption test section were respectively conducted and contrastively analyzed. The results showed that the absorption rate with mono nano Ag in bubble absorption process is higher than that without any nanoparticles; in adiabatic case, when the initial temperature of NH₃/H₂O solution is gradually increased within 6～18°C, the absorption rate decreases correspondingly, and so does the effective absorption ratio; in non-adiabatic case, with the cooling water temperature rising within 10～25°C, the absorption rate decreases but the effective absorption ratio increases. Therefore, it is concluded that the heat transfer enhancement of nanofluid can promote the NH₃/H₂O bubble absorption performance to a certain degree, and the enhancement of the absorption is not completely dependent on heat transfer.

543

A Study on the Features of NO Formation in the Cylinder of Biodiesel Engine

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Abstract: Abstract. A thermal mechanism of NO formation is developed to predict NO emission in the diesel engine and the explanation of more NOx emissions from the biodiesel engine exhaust is put forward. The start of ignition of biodiesel engine is early and so the trigger temperature of NO formation in cylinder is reached early. The mean temperature in cylinder will decrease in biodiesel engine. However, the concentration of oxygen at the combustion area is high due to the oxygenated property of biodiesel. Both of the two ways contribute to the more NOx emissions from biodiesel engine exhaust.

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