Activation energy for oxygen chemisorption on carbon at low temperatures

Hsisheng Teng, Chien To Hsieh

研究成果: Article

104 引文 斯高帕斯(Scopus)

摘要

The kinetics of oxygen chemisorption on resin chars were investigated in this study. The Elovich equation was employed to facilitate the interpretation of the chemisorption process. It was found that the activation energy for chemisorption is not constant and varies with surface coverage. This observation can be explained by a distributed kinetic parameter model, here implemented as a distributed activation energy model. The energy distribution model reveals that the amount of mass uptake obtained in a typical chemisorption study does not involve full coverage of all of the active sites on carbon. It is concluded that the information on active sites obtained from low-temperature chemisorption cannot be directly applied to gasification at higher temperatures.

原文English
頁(從 - 到)292-297
頁數6
期刊Industrial and Engineering Chemistry Research
38
發行號1
DOIs
出版狀態Published - 1999 一月 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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