Search Results
Abstract
Pooling lauroyl peroxide (LPO) with nitric acid, we used differential scanning calorimetry (DSC) to assess the thermokinetic parameters, such as exothermic onset temperature (T 0), heat of decomposition (ΔH d), frequency factor (A), and the other safety parameters. When LPO was contaminated with nitric acid (HNO3), we found the exploder 1-nitrododecane. Obvious products were sensitive and hazardous chemicals. Concentration reaching 1–12 N HNO3 emitted a large amount of heat. This study combined with curve-fitting method to elucidate its unsafe characteristics and thermally sensitive structure to help prevent runaway reactions, fires and explosions in the process environment. According to the findings and the concept of inherently safer design, LPO runaway reactions could be adequately prevented in the relevant plants.
stabilized radicals with monomers and lauroyl peroxide . Eur Polym J 40 : 103 – 108 10.1016/j.eurpolymj.2003.09.007 . 3. Guillet , JE , Gilmer , JC 1969 Decomposition of lauroyl, decanoyl
Abstract
Lauroyl peroxide (LPO) is a typical organic peroxide that has caused many thermal runaway reactions and explosions. Differential scanning calorimetry (DSC) was employed to determine the fundamental thermokinetic parameters that involved exothermic onset temperature (T0), heat of decomposition (ΔHd), and other safety parameters for loss prevention of runaway reactions and thermal explosions. Frequency factor (A) and activation energy (Ea) were calculated by Kissinger model, Ozawa equation, and thermal safety software (TSS) series via DSC experimental data. Liquid thermal explosion (LTE) by TSS was employed to simulate the thermal explosion development for various types of storage tank. In view of loss prevention, calorimetric application and model analysis to integrate thermal hazard development were necessary and useful for inherently safer design.
Further explanations of lauroyl peroxide runaway reaction by DSC tests and simulations
Answer to the critics of Prof. K.-D. Wehrstedt and Prof. M. Malow
It is our honor and pleasure to discuss some phenomena of specific organic peroxide with Prof. M. Malow and Prof. K. D. Wehrstedt. The kinetic parameters of the thermal behavior of lauroyl peroxide (LPO) were detected by DSC under non
-linking agents [ 1 , 2 ]. However, a critical factor for OPs, which have relatively weak oxygen linkage and hydroperoxide radical in the presence of reaction solution, is one of thermal hazards in triggering a runaway incident [ 3 – 5 ]. Lauroyl peroxide
Letter to the Editor
Comments on the “Letter to the editor” by M.-L. You and C.-M. Shu (Journal of Thermal Analysis and Calorimetry, 2010;100:367–369) as response to the “Letter to the editor” by M. Malow and K.-D. Wehrstedt (Journal of Thermal Analysis and Calorimetry, 2009;98:885–886)
—Response to comments for thermal explosion and runaway reaction simulation of lauroyl peroxide by DSC tests . J Therm Anal Calorim 2010 100 : 367 – 369 10.1007/s10973-010-0729-5 . 2. Malow , M
Lauroyl peroxide (LPO) 70 576 * * 1 Benzoyl peroxide (BPO) 105
explanations of lauroyl peroxide runaway reaction by DSC tests and simulations . J Therm Anal Calorim 103 : 411 – 412 10.1007/s10973-010-1123-z . 18. Lin , CP , Tseng , JM 2012 Green
. You , ML , Liu , MY , Wu , SH , Chi , JH , Shu , CM 2009 Thermal explosion and runaway reaction simulation of lauroyl peroxide by DSC tests . J Therm Anal Calorim 96 : 777 – 782 10.1007/s10973
. You , ML , Tseng , JM , Liu , MY , Shu , CM . Runaway reaction of lauroyl peroxide with nitric acid by DSC . J Therm Anal Calorim . 2010 ; 102 : 535 – 539 . 10.1007/s10973-010-0934-2 . 22
