SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (1): 37-44.DOI: 10.1016/j.cjche.2016.05.035

• Separation Science and Engineering • 上一篇    下一篇

Adsorption of Naphthol Green B on unburned carbon: 2- and 3-parameter linear and non-linear equilibrium modelling

Lucie Bartoňová1,2,3, Lucie Ruppenthalová1,4, Michal Ritz1,3   

  1. 1 VŠB-Technical University of Ostrava, Faculty of Metallurgy and Material Engineering, Department of Chemistry, Tř. 17. listopadu 15, 708 33 Ostrava, Poruba, Czech Republic;
    2 VŠB-Technical University of Ostrava, Sustainable Development of Centre ENET, Tř. 17. listopadu 15, 708 33 Ostrava, Poruba, Czech Republic;
    3 VŠB-Technical University of Ostrava, Regional Materials Science and Technology Centre, Tř. 17. listopadu 15, 708 33 Ostrava, Poruba, Czech Republic;
    4 Institute of Geonics of the CAS, Studentská 1768, 708 00 Ostrava, Poruba, Czech Republic
  • 收稿日期:2016-03-24 修回日期:2016-05-26 出版日期:2017-01-28 发布日期:2017-02-15
  • 通讯作者: Lucie Bartoňová,E-mail address:lucie.bartonova@vsb.cz
  • 基金资助:
    Supported by the project No. LO1404 (Sustainable Development of Center ENET-Energy Units for the Utilization of Non-Traditional Energy Sources), project No. LO 1203 (Regional Materials Science and Technology Centre-Feasibility Program) and the project No. LO1406 (Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use-Sustainability Program, supported by the National Programme for Sustainability I 2013-2020).

Adsorption of Naphthol Green B on unburned carbon: 2- and 3-parameter linear and non-linear equilibrium modelling

Lucie Bartoňová1,2,3, Lucie Ruppenthalová1,4, Michal Ritz1,3   

  1. 1 VŠB-Technical University of Ostrava, Faculty of Metallurgy and Material Engineering, Department of Chemistry, Tř. 17. listopadu 15, 708 33 Ostrava, Poruba, Czech Republic;
    2 VŠB-Technical University of Ostrava, Sustainable Development of Centre ENET, Tř. 17. listopadu 15, 708 33 Ostrava, Poruba, Czech Republic;
    3 VŠB-Technical University of Ostrava, Regional Materials Science and Technology Centre, Tř. 17. listopadu 15, 708 33 Ostrava, Poruba, Czech Republic;
    4 Institute of Geonics of the CAS, Studentská 1768, 708 00 Ostrava, Poruba, Czech Republic
  • Received:2016-03-24 Revised:2016-05-26 Online:2017-01-28 Published:2017-02-15
  • Supported by:
    Supported by the project No. LO1404 (Sustainable Development of Center ENET-Energy Units for the Utilization of Non-Traditional Energy Sources), project No. LO 1203 (Regional Materials Science and Technology Centre-Feasibility Program) and the project No. LO1406 (Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use-Sustainability Program, supported by the National Programme for Sustainability I 2013-2020).

摘要: The study deals with adsorption of Naphthol Green B on two unburned carbons and the parent coal, from which the UCs have been created in a fluidised-bed power station. Particular attention has been paid to the adsorption equilibrium modelling:experimental data has been analysed using 2-parameter (Langmuir, Freundlich) and 3-parameter (Redlich-Peterson) isotherms-both linear and non-linear regressions have been used for the estimation of the isotherm parameters. In the case of both UCs, the Langmuir isotherm model provides the worst fit, whereas 2-parameter Freundlich and 3-parameter Redlich-Peterson models are both good, from which 3-parameter Redlich-Peterson isotherm provides slightly better results (despite the penalty used for the higher number of parameters). In the case of both UCs, the linear regression of Freundlich and Redlich-Peterson models provides good results (comparable with non-linear regressions). Unlike both UCs, the best fit of the experimental data from the adsorption on the coal has been achieved by the Langmuir isotherm model. The results based on the Freundlich or Redlich-Peterson model were (in this case) somewhat worse.

关键词: Adsorption, Unburned carbon, Naphthol Green B, Isotherms, Non-linear modelling, Redlich-Peterson model

Abstract: The study deals with adsorption of Naphthol Green B on two unburned carbons and the parent coal, from which the UCs have been created in a fluidised-bed power station. Particular attention has been paid to the adsorption equilibrium modelling:experimental data has been analysed using 2-parameter (Langmuir, Freundlich) and 3-parameter (Redlich-Peterson) isotherms-both linear and non-linear regressions have been used for the estimation of the isotherm parameters. In the case of both UCs, the Langmuir isotherm model provides the worst fit, whereas 2-parameter Freundlich and 3-parameter Redlich-Peterson models are both good, from which 3-parameter Redlich-Peterson isotherm provides slightly better results (despite the penalty used for the higher number of parameters). In the case of both UCs, the linear regression of Freundlich and Redlich-Peterson models provides good results (comparable with non-linear regressions). Unlike both UCs, the best fit of the experimental data from the adsorption on the coal has been achieved by the Langmuir isotherm model. The results based on the Freundlich or Redlich-Peterson model were (in this case) somewhat worse.

Key words: Adsorption, Unburned carbon, Naphthol Green B, Isotherms, Non-linear modelling, Redlich-Peterson model