The concept of higher-order frequency response functions (FRFs), which is based on Volterra series expansion of nonlinear functions, is used for analysis of kinetics of nonlinear adsorption systems. Four different kinetic mechanisms: Langmuir kinetics, film resistance control, micropore diffusion control and pore-surface diffusion control were analyzed and the results were compared. It was shown that, contrary to the linear frequency response characteristic functions, the higher-order FRFs corresponding to different mechanisms differ in shape. This result offers great potential for the identification of the adsorption-diffusion mechanism governing the process. It is shown that the second order FRFs give sufficient information for distinguishing different mechanisms.
Keywords:
nonlinear frequency response / higher-order frequency response functions / nonlinear adsorption kinetics / isothermal kinetic models
TY - JOUR
AU - Petkovska, Menka
AU - Do, Doung
PY - 2000
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/281
AB - The concept of higher-order frequency response functions (FRFs), which is based on Volterra series expansion of nonlinear functions, is used for analysis of kinetics of nonlinear adsorption systems. Four different kinetic mechanisms: Langmuir kinetics, film resistance control, micropore diffusion control and pore-surface diffusion control were analyzed and the results were compared. It was shown that, contrary to the linear frequency response characteristic functions, the higher-order FRFs corresponding to different mechanisms differ in shape. This result offers great potential for the identification of the adsorption-diffusion mechanism governing the process. It is shown that the second order FRFs give sufficient information for distinguishing different mechanisms.
PB - Kluwer Academic Publ, Dordrecht
T2 - Nonlinear Dynamics
T1 - Use of higher-order frequency response functions for identification of nonlinear adsorption kinetics: Single mechanisms under isothermal conditions
EP - 376
IS - 4
SP - 353
VL - 21
DO - 10.1023/A:1008342419693
ER -
@article{
author = "Petkovska, Menka and Do, Doung",
year = "2000",
abstract = "The concept of higher-order frequency response functions (FRFs), which is based on Volterra series expansion of nonlinear functions, is used for analysis of kinetics of nonlinear adsorption systems. Four different kinetic mechanisms: Langmuir kinetics, film resistance control, micropore diffusion control and pore-surface diffusion control were analyzed and the results were compared. It was shown that, contrary to the linear frequency response characteristic functions, the higher-order FRFs corresponding to different mechanisms differ in shape. This result offers great potential for the identification of the adsorption-diffusion mechanism governing the process. It is shown that the second order FRFs give sufficient information for distinguishing different mechanisms.",
publisher = "Kluwer Academic Publ, Dordrecht",
journal = "Nonlinear Dynamics",
title = "Use of higher-order frequency response functions for identification of nonlinear adsorption kinetics: Single mechanisms under isothermal conditions",
pages = "376-353",
number = "4",
volume = "21",
doi = "10.1023/A:1008342419693"
}
Petkovska, M.,& Do, D.. (2000). Use of higher-order frequency response functions for identification of nonlinear adsorption kinetics: Single mechanisms under isothermal conditions. in Nonlinear Dynamics
Kluwer Academic Publ, Dordrecht., 21(4), 353-376.
https://doi.org/10.1023/A:1008342419693
Petkovska M, Do D. Use of higher-order frequency response functions for identification of nonlinear adsorption kinetics: Single mechanisms under isothermal conditions. in Nonlinear Dynamics. 2000;21(4):353-376.
doi:10.1023/A:1008342419693 .
Petkovska, Menka, Do, Doung, "Use of higher-order frequency response functions for identification of nonlinear adsorption kinetics: Single mechanisms under isothermal conditions" in Nonlinear Dynamics, 21, no. 4 (2000):353-376,
https://doi.org/10.1023/A:1008342419693 . .
