A novel approach to the experimental study on methane/steam reforming kinetics using the Orthogonal Least Squares method

Anna Sciazko, Yosuke Komatsu, Grzegorz Brus, Shinji Kimijima, Janusz S. Szmyd

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

For a mathematical model based on the result of physical measurements, it becomes possible to determine their influence on the final solution and its accuracy. However, in classical approaches, the influence of different model simplifications on the reliability of the obtained results are usually not comprehensively discussed. This paper presents a novel approach to the study of methane/steam reforming kinetics based on an advanced methodology called the Orthogonal Least Squares method. The kinetics of the reforming process published earlier are divergent among themselves. To obtain the most probable values of kinetic parameters and enable direct and objective model verification, an appropriate calculation procedure needs to be proposed. The applied Generalized Least Squares (GLS) method includes all the experimental results into the mathematical model which becomes internally contradicted, as the number of equations is greater than number of unknown variables. The GLS method is adopted to select the most probable values of results and simultaneously determine the uncertainty coupled with all the variables in the system. In this paper, the evaluation of the reaction rate after the pre-determination of the reaction rate, which was made by preliminary calculation based on the obtained experimental results over a Nickel/Yttria-stabilized Zirconia catalyst, was performed.

Original languageEnglish
Pages (from-to)245-254
Number of pages10
JournalJournal of Power Sources
Volume262
DOIs
Publication statusPublished - 2014 Sep 15

Fingerprint

Steam reforming
least squares method
steam
Reaction rates
methane
Mathematical models
Kinetics
Yttria stabilized zirconia
mathematical models
kinetics
reaction kinetics
Reforming reactions
Nickel
Kinetic parameters
yttria-stabilized zirconia
simplification
Catalysts
nickel
methodology
catalysts

Keywords

  • Generalized Least Squares method
  • Methane/steam reforming
  • Ni/YSZ catalyst
  • Uncertainty analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

A novel approach to the experimental study on methane/steam reforming kinetics using the Orthogonal Least Squares method. / Sciazko, Anna; Komatsu, Yosuke; Brus, Grzegorz; Kimijima, Shinji; Szmyd, Janusz S.

In: Journal of Power Sources, Vol. 262, 15.09.2014, p. 245-254.

Research output: Contribution to journalArticle

@article{b9b28bca48404f83baade22e6f09685b,
title = "A novel approach to the experimental study on methane/steam reforming kinetics using the Orthogonal Least Squares method",
abstract = "For a mathematical model based on the result of physical measurements, it becomes possible to determine their influence on the final solution and its accuracy. However, in classical approaches, the influence of different model simplifications on the reliability of the obtained results are usually not comprehensively discussed. This paper presents a novel approach to the study of methane/steam reforming kinetics based on an advanced methodology called the Orthogonal Least Squares method. The kinetics of the reforming process published earlier are divergent among themselves. To obtain the most probable values of kinetic parameters and enable direct and objective model verification, an appropriate calculation procedure needs to be proposed. The applied Generalized Least Squares (GLS) method includes all the experimental results into the mathematical model which becomes internally contradicted, as the number of equations is greater than number of unknown variables. The GLS method is adopted to select the most probable values of results and simultaneously determine the uncertainty coupled with all the variables in the system. In this paper, the evaluation of the reaction rate after the pre-determination of the reaction rate, which was made by preliminary calculation based on the obtained experimental results over a Nickel/Yttria-stabilized Zirconia catalyst, was performed.",
keywords = "Generalized Least Squares method, Methane/steam reforming, Ni/YSZ catalyst, Uncertainty analysis",
author = "Anna Sciazko and Yosuke Komatsu and Grzegorz Brus and Shinji Kimijima and Szmyd, {Janusz S.}",
year = "2014",
month = "9",
day = "15",
doi = "10.1016/j.jpowsour.2014.03.097",
language = "English",
volume = "262",
pages = "245--254",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - A novel approach to the experimental study on methane/steam reforming kinetics using the Orthogonal Least Squares method

AU - Sciazko, Anna

AU - Komatsu, Yosuke

AU - Brus, Grzegorz

AU - Kimijima, Shinji

AU - Szmyd, Janusz S.

PY - 2014/9/15

Y1 - 2014/9/15

N2 - For a mathematical model based on the result of physical measurements, it becomes possible to determine their influence on the final solution and its accuracy. However, in classical approaches, the influence of different model simplifications on the reliability of the obtained results are usually not comprehensively discussed. This paper presents a novel approach to the study of methane/steam reforming kinetics based on an advanced methodology called the Orthogonal Least Squares method. The kinetics of the reforming process published earlier are divergent among themselves. To obtain the most probable values of kinetic parameters and enable direct and objective model verification, an appropriate calculation procedure needs to be proposed. The applied Generalized Least Squares (GLS) method includes all the experimental results into the mathematical model which becomes internally contradicted, as the number of equations is greater than number of unknown variables. The GLS method is adopted to select the most probable values of results and simultaneously determine the uncertainty coupled with all the variables in the system. In this paper, the evaluation of the reaction rate after the pre-determination of the reaction rate, which was made by preliminary calculation based on the obtained experimental results over a Nickel/Yttria-stabilized Zirconia catalyst, was performed.

AB - For a mathematical model based on the result of physical measurements, it becomes possible to determine their influence on the final solution and its accuracy. However, in classical approaches, the influence of different model simplifications on the reliability of the obtained results are usually not comprehensively discussed. This paper presents a novel approach to the study of methane/steam reforming kinetics based on an advanced methodology called the Orthogonal Least Squares method. The kinetics of the reforming process published earlier are divergent among themselves. To obtain the most probable values of kinetic parameters and enable direct and objective model verification, an appropriate calculation procedure needs to be proposed. The applied Generalized Least Squares (GLS) method includes all the experimental results into the mathematical model which becomes internally contradicted, as the number of equations is greater than number of unknown variables. The GLS method is adopted to select the most probable values of results and simultaneously determine the uncertainty coupled with all the variables in the system. In this paper, the evaluation of the reaction rate after the pre-determination of the reaction rate, which was made by preliminary calculation based on the obtained experimental results over a Nickel/Yttria-stabilized Zirconia catalyst, was performed.

KW - Generalized Least Squares method

KW - Methane/steam reforming

KW - Ni/YSZ catalyst

KW - Uncertainty analysis

UR - http://www.scopus.com/inward/record.url?scp=84898815550&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898815550&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2014.03.097

DO - 10.1016/j.jpowsour.2014.03.097

M3 - Article

AN - SCOPUS:84898815550

VL - 262

SP - 245

EP - 254

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -