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Yu-Chuan Liang Can-Yong Jhu Sheng-Hung Wu Sun-Ju Shen Chi-Min Shu 《Journal of Thermal Analysis and Calorimetry》2011,106(1):173-177
Methyl ethyl ketone peroxide (MEKPO) is generally applied to manufacturing in the polymerization processes. Due to thermal
instability and high exothermic behaviors of MEKPO, if any operation is undertaken recklessly or some environmental effect
is produced suddenly during the processes, fires and explosions may inevitably occur. In this study, thermal analysis was
evaluated for MEKPO by differential scanning calorimetry (DSC) test. Vent sizing package 2 (VSP2) was used to analyze the
thermal hazard of MEKPO under various stirring rates in a batch reactor. Thermokinetic and safety parameters, including exothermic
onset temperature (T
0), maximum temperature (T
max), maximum pressure (P
max), self-heating rate (dT dt
−1), pressure rise rate (dP dt
−1), and so on, were discovered to identify the safe handling situation. The stirring rates of reactor were confirmed to affect
runaway and thermal hazard characteristics in the batch reactor. If the stirring rate was out of control, it could soon cause
a thermal hazard in the reactor. 相似文献
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Wei-Ting Chen Wei-Chun Chen Kuang-Hua Hsueh Chen-Wei Chiu Chi-Min Shu 《Journal of Thermal Analysis and Calorimetry》2014,118(2):1085-1094
The rapid development of the petrochemical industry of Taiwan over the past four decades has resulted in a booming economy in Taiwan that drives derived industries to develop progressively. However, it has also caused many runaway reaction accidents, such as toxic gas release, fire, and explosion. It is crucial to eliminate those potential hazard factors which can induce consequent runaway reaction accidents during the life span of the manufacturing process. In response to this crucial issue, we performed a thermokinetic parameter analysis for 1,1-bis-(tert-butylperoxy)-3,3,5-trimethylcyclohexane at isothermal conditions to conduct a thermal safety assessment of chemical materials. The five isothermal temperatures, 90, 100, 110, 120, 130, and 140 °C, measured by DSC, were adopted in this study to calculate process safety parameters, including TMRad, T NR, and SADT, which can be employed in process safety parameters for the manufacturing process. A novel, green kinetic approach accompanied with non-isothermal DSC results is used to derive thermokinetic parameters in safety protocol in this study. 相似文献
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Chun-Ping Lin Yi-Ming Chang Jo-Ming Tseng Chi-Min Shu 《Journal of Thermal Analysis and Calorimetry》2010,100(2):607-614
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) is a typical highly energetic material that has been widely used in
national defense industries since the 1940s. The aim of this study was to establish a reaction kinetic model on thermal decomposition
properties via differential scanning calorimetry (DSC) by well-known kinetic equations and kinetic model simulation. Furthermore,
the aim also was to compare kinetic algorithms for thermal decomposition energy parameters under various conditions. Experimental
results highly depended on the reliability of the kinetic concept applied, which is essentially defined by the proper choice
of a mathematical model of a reaction. In addition, the correctness of the methods is used for kinetics evaluation. 相似文献
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Sixteen compounds were isolated from the bark of Chamaecyparis formosensis Matsum. These compounds include four categories: (a) long-chain alcohols, acids and esters, (b) sterols and their glucosides, (c) o-methoxyphenol and related compounds, (d) diterpenes of abietane, pimarane, secoabietane and totarane. 相似文献
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The syntheses of three fused bicyclic enones, including 1,2,6,6a-tetrahydro-1-tosyl-cyclopenta[b]pyrrol-3(5H)-one, 1,2,3,6,7,7a-hexahydro-4H-1-tosyl-cyclopenta[b]pyridin-4-one and 1,2,5,6,7,7a-hexahydro-3H-1-tosyl-indol-3-one, via anionic cyclization and Diels-Alder reactions with various dienes to construct novel nitrogen-containing angular tricyclic skeletons are described. 相似文献
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Wu Chi-Min 《Nuclear Physics B》1980,167(3):337-348
In the leading logarithmic approximation, the fragmentation functions of quarks and gluons are investigated using Altarelli-Parisi type equations. Using a new method to make the Mellin transformation, the equation is solved. Analytic expressions for the fragmentation functions near z = 0 and z = 1 are also given. Finally, numerical results for the fragmentation functions Dqπ, DqK are presented for different Q2. 相似文献
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Li Zhenbao Wen Hu Shu Chi-Min Laiwang Bin Li Bei Xiao Yang Wei Gaoming 《Journal of Thermal Analysis and Calorimetry》2019,137(5):1693-1705
Journal of Thermal Analysis and Calorimetry - As to the continuous consumption of limited high-rank coal resources, low-rank bituminous coal is gradually grabbing more attention to the utilization... 相似文献
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Chen Wei-Chun Yeh Chi-Tang Shu Chi-Min 《Journal of Thermal Analysis and Calorimetry》2019,135(5):2747-2757
Journal of Thermal Analysis and Calorimetry - 1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane (TMCH), an industrial initiator and cross-linking agent comprising two active peroxy bonds,... 相似文献