A Thermometric Analysis for an Explosion Accident in a Nitromethane Rectification Process

Abstract:

The chemical plays an important role in fire or explosion accidents during the chemical process. It is of great significance to study thermal explosion risks of chemicals through thermometric analysis. There are usually two parameters most widely used to determine the thermal stability, TD24 and SADT, to judge whether chemicals will explode under such reaction conditions. This article chooses thermometric analysis method to investigate an explosion accident in a process of nitromethane rectification. It is an effective way to analyze the accident causes from the angle of thermal stability. Samples including crude product, 99% product and raffinate have been collected from the accident site, with which three thermometric analysis experiments have been performed. Through these experiments, heat releasing curves of samples at different heating rates were measured, offering essential data for calculating TD24 and SADT. These results are able to help conclude what contributes most to this accident and what are the probable causes, as well as providing scientific support for how to prevent explosion in consideration of the thermal stability.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 327-331
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.327
• Online since: December 2012
• Authors: Bo Zhang, Qian Qian Xin, Shuang Ming Jia
• Keywords: Explosion, Nitromethane Rectification Process, SADT, TD24, Thermometric Analysis

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