A new method for assessing the thermal hazard of reactive substances

Li Yang, Yong Pan, Jinghong Wang, Wenjuan Shang, Jinxing Lan, Jun Cheng Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The thermal hazard including spontaneous combustion, thermal decomposition and thermal explosion, is one of the most important characteristics of reactive chemicals. Thus, the evaluation of thermal hazard associated to the involved reactive substances is rather necessary. In this study, both heat of reaction (-ΔH) and onset temperature (To) were chosen as the indicators to determine the severity and probability of the thermal decomposition hazard, respectively. These two indicators were non-dimensionally processed by semi-normal distribution functions. Then a new index THI (Thermal Hazard index) is proposed and the corresponding thermal hazard ranking standard is established with the thermal hazard being divided into five levels. The study showed that the ranking results of THI are consistent with that of Reaction Hazard Index (RHI). Besides, THI is considered to be more accurate to assess the thermal hazard of reactive substances. The new evaluation index proposed in this work is considered to have potential applications in assessing the thermal hazard of reactive substances in chemicals process.

Original languageEnglish
Title of host publication2nd International Conference on Materials Science, Resource and Environmental Engineering, MSREE 2017
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415683
DOIs
StatePublished - 5 Oct 2017
Event2nd International Conference on Materials Science, Resource and Environmental Engineering, MSREE 2017 - Hubei Province, China
Duration: 27 Oct 201729 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1890
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference on Materials Science, Resource and Environmental Engineering, MSREE 2017
Country/TerritoryChina
CityHubei Province
Period27/10/1729/10/17

Keywords

  • heat of reaction
  • pyrogenic decomposition
  • self-ignition
  • thermal explosion

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