کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
584678 | 877895 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of thermal decomposition of methyl ethyl ketone peroxide using DSC and simulation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
The aim of this study was to identify the characteristics of MEKPO 31Â wt.% while mixing with contaminants, such as H2SO4, HCl, and NaCl under runaway conditions. To acquire the thermal runaway data, DSC and a simulation were used for thermal analysis. The results showed that the thermal decomposition of MEKPO and MEKPOÂ +Â H2SO4 follows two stages. The first one can be modeled by using an empirical nth order rate equation. The second stage can be modeled as autocatalytic. MEKPOÂ +Â HCl and MEKPOÂ +Â NaCl included two independent autocatalytic reactions. The decomposition of MEKPO in the presence of Clâ ions (added in MEKPO either in the form of HCl or NaCl) follows a significantly different path, an earlier decomposition “onset” temperature, higher amount of generated thermal power and smaller temperature of no return (TNR) and time to maximum rate (TMR) values. Simulations based on experimental data indicated that the effect of H2SO4 was the most dangerous contaminant on MEKPO 31Â wt.%. However, the impact of Cl ions was also important. It is therefore recommended that the means of fire fighting employed for this substance to be free of Clâ.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 142, Issue 3, 11 April 2007, Pages 765-770
Journal: Journal of Hazardous Materials - Volume 142, Issue 3, 11 April 2007, Pages 765-770
نویسندگان
Jo-Ming Tseng, Ying-Yu Chang, Teh-Sheng Su, Chi-Min Shu,