Experimental verification of kinetics and internal diffusion impact on low temperature steam reforming of a propane-methane mixture over Ni-based catalyst

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Experimental verification of kinetics and internal diffusion impact on low temperature steam reforming of a propane-methane mixture over Ni-based catalyst. / Shigarov, A. B.; Uskov, S. I.; Potemkin, D. I. et al.

In: Chemical Engineering Journal, Vol. 429, 132205, 01.02.2022.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{12b3db11ebb242baa541346e81c00f01,

title = "Experimental verification of kinetics and internal diffusion impact on low temperature steam reforming of a propane-methane mixture over Ni-based catalyst",

abstract = "Experiments were made on three fractions (0.5–1, 2–2.5 and 3–5 mm) of a Ni/Cr2O3/Al2O3 catalyst in order to verify the kinetics and influence of internal diffusion transport on the apparent reaction rate of low-temperature steam reforming of a propane-methane mixture. Feed gas composition was: C3H8 = 22.6%, CH4 = 77.4%, H2O/C = 0.51, GHSV = 11600 h−1, temperature 300–370 °C. To analyze the experimental data, a plug-flow reactor model with fixed temperature profiles was used; the profiles were obtained by interpolating the measurements of a moving thermocouple placed along the axis of the catalyst bed. The global kinetic scheme included the parallel reactions of propane steam reforming and propane hydrogenolysis. The catalyst effectiveness factor was calculated with the effective diffusion coefficient based on the Wilke formula, Thiele modulus and experimental pore size distribution. Experimental data for all catalyst fractions are described well by the proposed model at a porous catalyst tortuosity factor 1.53 and permeability coefficient 0.26.",

keywords = "Associated petroleum gas, Catalyst effectiveness factor, Hydrogenolysis, Nickel catalysts, Steam reforming, Thiele modulus",

author = "Shigarov, {A. B.} and Uskov, {S. I.} and Potemkin, {D. I.} and Snytnikov, {P. V.}",

note = "Funding Information: The reported study was partially funded by Russian Foundation of Basic Research ; project 18-29-24015 _mk. In the part of experimental kinetic verification it was partially supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (project AAAA-A21-121011390009-1 ). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2022",

month = feb,

day = "1",

doi = "10.1016/j.cej.2021.132205",

language = "English",

volume = "429",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Experimental verification of kinetics and internal diffusion impact on low temperature steam reforming of a propane-methane mixture over Ni-based catalyst

AU - Shigarov, A. B.

AU - Uskov, S. I.

AU - Potemkin, D. I.

AU - Snytnikov, P. V.

N1 - Funding Information: The reported study was partially funded by Russian Foundation of Basic Research ; project 18-29-24015 _mk. In the part of experimental kinetic verification it was partially supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (project AAAA-A21-121011390009-1 ). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2022/2/1

Y1 - 2022/2/1

N2 - Experiments were made on three fractions (0.5–1, 2–2.5 and 3–5 mm) of a Ni/Cr2O3/Al2O3 catalyst in order to verify the kinetics and influence of internal diffusion transport on the apparent reaction rate of low-temperature steam reforming of a propane-methane mixture. Feed gas composition was: C3H8 = 22.6%, CH4 = 77.4%, H2O/C = 0.51, GHSV = 11600 h−1, temperature 300–370 °C. To analyze the experimental data, a plug-flow reactor model with fixed temperature profiles was used; the profiles were obtained by interpolating the measurements of a moving thermocouple placed along the axis of the catalyst bed. The global kinetic scheme included the parallel reactions of propane steam reforming and propane hydrogenolysis. The catalyst effectiveness factor was calculated with the effective diffusion coefficient based on the Wilke formula, Thiele modulus and experimental pore size distribution. Experimental data for all catalyst fractions are described well by the proposed model at a porous catalyst tortuosity factor 1.53 and permeability coefficient 0.26.

AB - Experiments were made on three fractions (0.5–1, 2–2.5 and 3–5 mm) of a Ni/Cr2O3/Al2O3 catalyst in order to verify the kinetics and influence of internal diffusion transport on the apparent reaction rate of low-temperature steam reforming of a propane-methane mixture. Feed gas composition was: C3H8 = 22.6%, CH4 = 77.4%, H2O/C = 0.51, GHSV = 11600 h−1, temperature 300–370 °C. To analyze the experimental data, a plug-flow reactor model with fixed temperature profiles was used; the profiles were obtained by interpolating the measurements of a moving thermocouple placed along the axis of the catalyst bed. The global kinetic scheme included the parallel reactions of propane steam reforming and propane hydrogenolysis. The catalyst effectiveness factor was calculated with the effective diffusion coefficient based on the Wilke formula, Thiele modulus and experimental pore size distribution. Experimental data for all catalyst fractions are described well by the proposed model at a porous catalyst tortuosity factor 1.53 and permeability coefficient 0.26.

KW - Associated petroleum gas

KW - Catalyst effectiveness factor

KW - Hydrogenolysis

KW - Nickel catalysts

KW - Steam reforming

KW - Thiele modulus

UR - http://www.scopus.com/inward/record.url?scp=85114948979&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2021.132205

DO - 10.1016/j.cej.2021.132205

M3 - Article

AN - SCOPUS:85114948979

VL - 429

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

M1 - 132205

ER -

ID: 34225451