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Screening analysis for hazard assessment of peroxides decomposition / V. Casson in Industrial & engineering chemistry research, Vol. 51 N° 22 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp.7526–7535 Titre : Screening analysis for hazard assessment of peroxides decomposition Type de document : texte imprimé Auteurs : V. Casson, Auteur ; G. Maschio, Auteur Année de publication : 2012 Article en page(s) : pp.7526–7535 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Analysis  hazard  assessment  Peroxides Résumé : In this study, the analysis of the decomposition of four different peroxides (including hydrogen peroxide) by screening calorimetry is proposed. The objective is to analyze the decomposition reactions and evaluate the consequences in particular when the process undergoes to thermal explosion and may be the cause of incidents. Screening calorimetry data allow us to define the conditions and ranges of temperature and pressure evolved during the reaction. In the experimental apparatus used (a screening calorimeter), the experiments have been carried out safely, even when there is a rapid and large increase in temperature and pressure. Scanning and isothermal conditions has been investigated. An Early Warning Detection System (EWDS) for thermal runaway, based on the divergence criterion, has also been applied off-line to the experimental isothermal data, in order to evaluate the sensitivity of the method applied to both temperature and pressure profiles. The results of the application of the EWDS have been compared to those obtained using the Hub and Jones criterion. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201690n [article] Screening analysis for hazard assessment of peroxides decomposition [texte imprimé] / V. Casson, Auteur ; G. Maschio, Auteur . - 2012 . - pp.7526–7535. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp.7526–7535 Mots-clés : Analysis  hazard  assessment  Peroxides Résumé : In this study, the analysis of the decomposition of four different peroxides (including hydrogen peroxide) by screening calorimetry is proposed. The objective is to analyze the decomposition reactions and evaluate the consequences in particular when the process undergoes to thermal explosion and may be the cause of incidents. Screening calorimetry data allow us to define the conditions and ranges of temperature and pressure evolved during the reaction. In the experimental apparatus used (a screening calorimeter), the experiments have been carried out safely, even when there is a rapid and large increase in temperature and pressure. Scanning and isothermal conditions has been investigated. An Early Warning Detection System (EWDS) for thermal runaway, based on the divergence criterion, has also been applied off-line to the experimental isothermal data, in order to evaluate the sensitivity of the method applied to both temperature and pressure profiles. The results of the application of the EWDS have been compared to those obtained using the Hub and Jones criterion. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201690n