Non-Arrhenius behaviour in the oxidation of two carbonaceous substrates

Two carbonaceous substances—a chemically activated carbon and a bituminous coal—are found, in microcalorimeter experiments, to display a temperature dependence of reaction rate at odds with the Arrhenius equation. Since Arrhenius behaviour is always assumed in tests for spontaneous heating of such s...

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Bibliographic Details
Published inJournal of loss prevention in the process industries Vol. 16; no. 3; pp. 223 - 225
Main Authors Jones, J.C., Newman, S.C.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2003
Subjects
Arrhenius parameters
Carbon
Coal
Self-heating
Arrhenius parameters
Carbon
Coal
Self-heating
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Summary:Two carbonaceous substances—a chemically activated carbon and a bituminous coal—are found, in microcalorimeter experiments, to display a temperature dependence of reaction rate at odds with the Arrhenius equation. Since Arrhenius behaviour is always assumed in tests for spontaneous heating of such substances, this places a question mark over the validity of such tests for at least some of the materials to which they might be routinely applied.
ISSN:0950-4230
DOI:10.1016/S0950-4230(02)00115-8