Comparison of kinetic models for the aqueous solid-liquid extraction of Tilia sapwood a continuous stirred tank reactor

Hanatou Adamou Harouna-Oumarou, Henri Fauduet, Catherine Porte, Yuh Shan Ho

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The kinetic study of the aqueous extraction of Tilia sapwood was based on temperature, while all the other factors were kept constant. Several models were used and compared to explain the kinetics of the aqueous solid-liquid extraction of Tilia sapwood. For each model, the rate constant, the equilibrium extraction capacity, and the initial extraction rate were evaluated to analyze the suitability of these kinetic models to describe the leaching process for temperatures ranging from 313 to 363 K. The pseudo first-order model could not be applied during the whole of the process. The Elovich model provided a good degree of correlation (from 0.929 to 0.988) and could be applied all along the extraction process. The pseudo second-order model was satisfactorily applied, with coefficients of correlation over 0.998, showing that it perfectly described the process. A physical explanation of these models was finally proposed.

Original languageEnglish
Pages (from-to)537-552
Number of pages16
JournalChemical Engineering Communications
Volume194
Issue number4
DOIs
Publication statusPublished - Jan 3 2007

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Kinetics
Liquids
Leaching
Rate constants
Temperature

Keywords

  • Elovich model
  • First-order model
  • Kinetics
  • Leaching
  • Second-order model
  • Tilia sapwood

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Comparison of kinetic models for the aqueous solid-liquid extraction of Tilia sapwood a continuous stirred tank reactor. / Harouna-Oumarou, Hanatou Adamou; Fauduet, Henri; Porte, Catherine; Ho, Yuh Shan.

In: Chemical Engineering Communications, Vol. 194, No. 4, 03.01.2007, p. 537-552.

Research output: Contribution to journalArticle

Harouna-Oumarou, Hanatou Adamou ; Fauduet, Henri ; Porte, Catherine ; Ho, Yuh Shan. / Comparison of kinetic models for the aqueous solid-liquid extraction of Tilia sapwood a continuous stirred tank reactor. In: Chemical Engineering Communications. 2007 ; Vol. 194, No. 4. pp. 537-552.
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