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題名 | Determination of the Multiple Runaway-Reaction Sequence for the MEK-Oxidation Reaction=MEK氧化反應之複式失控反應順序的決定 |
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作者 | 廖宏章; 余清其; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 34:5 2003.09[民92.09] |
頁次 | 頁545-554 |
分類號 | 460.02 |
關鍵詞 | 複式失控反應順序; 丁酮氧化反應; Initial temperature; Thermal hazard; Thermal inertia; Multiple runaway reaction; MEK oxidation; |
語文 | 英文(English) |
中文摘要 | 本研究提出一利用個別反應的起始溫度和絕熱溫度上升值來求複式失控反應順序的方法,同時以真實條件下丁酮(MEK)氧化反應為例以驗證所提方法。為了預測真實條件下的反應起始溫度,推導出一起始溫度預測方程式,所推導的方程式經由實驗數據驗證能應用於含單一或兩個以上反應物之反應速率方程式。本研究同時利用所推導的起始溫度預測方程式將先前所提之熱危害模式加以修正,並用來模擬真實條件H₂O₂和MEKP分解反應的熱危害以比較這兩個反應之熱危害。結果顯示於商業化MEK氧化程序中,MEK氧化反應的熱效應會使反應混合物的溫度升高至足以引發H₂O₂分解反應,緊接著會引發MEKP產生分解反應。 |
英文摘要 | A method is proposed to determine the runaway sequence of a multiple-runaway reaction using the initial temperature and adiabatic temperature rise of the individual reactions. The real-scale runaway process for MEK-oxidation was used as an example to validate this proposed approach. In order to predict the real-scale initial temperature for such a chemical reaction, an initial temperature-prediction equation was derived. The applicability of this derived equation to these reactions was verified using experimental data, with the rate equation for the reactions related to the concentrations of single or multiple reactants. In addition, the thermal-hazard model proposed previously was modified using this derived equation to predict the initial temperature. This modified model was then used to simulate the real-scale thermal hazards for H₂O₂ and MEKP decomposition in order to compare the relative hazards. Analysis of the results reveals that, in a commercial setting, the heat effect of MEK oxidation will probably increase the temperature of the reaction mixture enough to initiate H₂O₂ decomposition and, subsequently, MEKP decomposition. |
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