Abstract
The kinetics of the Fe3+‐mediated electrochemical oxidation of four types of Alberta coals in acidic slurries have been investigated. A critical examination of the previously reported mechanisms and kinetic treatments for the electrochemical oxidation of coal slurries is provided. In this work, a new approach was developed to analyze and to determine the rate constant of the electrochemical oxidation of coal, shown here to be an irreversible process. Two second‐order rate constants, and , representing the initial (0 to ca. 6h) and subsequent (ca. 6 to 24h) stages of electrochemical oxidation, respectively, were obtained from this approach. A correlation between these rate constants and the fixed carbon content (rank) was observed for the coals studied.
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