題名: Comparison of kinetic models for the aqueous solid-liquid extraction of Tilia sapwood in a continuous stirred tank reactor
作者: Harouna-Oumarou, H.A.;Fauduet, H.;Porte, C.;Ho, Y.S.
貢獻者: Department of Biotechnology
關鍵詞: Elovich model;First-order model;Kinetics;Leaching;Second-order model;Tilia sapwood
日期: 2007
上傳時間: 2009-12-15T05:25:02Z 出版者: Asia University
摘要: 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.
