The Kinetic Model of Formation of Nanofibrous Carbon from CH4–H2 Mixture over a High-Loaded Nickel Catalyst with Consideration for the Catalyst Deactivation Full article
| Journal |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Output data | Year: 2004, Volume: 272, Number: 1-2, Pages: 219-227 Pages count : 9 DOI: 10.1016/j.apcata.2004.05.044 | ||||
| Tags | Deactivation, Filamentous carbon, Kinetic model, Methane decomposition, Nanofibrous carbon, Ni-Al 2O3 catalyst | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | The Ministry of Education and Science of the Russian Federation | 203.06.03.001 |
| 2 | Президиум РАН | 4.8.1 |
Abstract:
A mathematical model is suggested for the process of formation of nanofibrous carbon from the mixture of methane and hydrogen over a high-loaded nickel catalyst (90 wt.% Ni–Al2O3) to describe the observed process kinetics involving the catalyst deactivation. The experimental kinetic data obtained at hydrogen volume fraction of 0–40%, 490–590 °C and atmospheric pressure are analyzed to suggest the formula for calculation of the maximal rate of the carbon formation and the equation of the catalyst deactivation. The suggested kinetic model relates to the mechanism when the cleavage of the first hydrogen atom from a methane molecule adsorbed on the catalyst surface is the rate-limiting stage. The model is appropriate for the qualitative and quantitative description of the process under consideration. The calculations in terms of the model are exemplified with synthesis of nanofibrous carbon in an isothermal perfect-mixing reactor at a constant methane consumption. The calculated results agree well with the experimental data.
Cite:
Zavarukhin S.G.
, Kuvshinov G.G.
The Kinetic Model of Formation of Nanofibrous Carbon from CH4–H2 Mixture over a High-Loaded Nickel Catalyst with Consideration for the Catalyst Deactivation
Applied Catalysis A: General. 2004. V.272. N1-2. P.219-227. DOI: 10.1016/j.apcata.2004.05.044 WOS Scopus РИНЦ ANCAN OpenAlex
The Kinetic Model of Formation of Nanofibrous Carbon from CH4–H2 Mixture over a High-Loaded Nickel Catalyst with Consideration for the Catalyst Deactivation
Applied Catalysis A: General. 2004. V.272. N1-2. P.219-227. DOI: 10.1016/j.apcata.2004.05.044 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | May 28, 2004 |
| Accepted: | May 28, 2004 |
| Published online: | Jul 17, 2004 |
| Published print: | Sep 1, 2004 |
Identifiers:
| Web of science: | WOS:000223592700024 |
| Scopus: | 2-s2.0-3843123062 |
| Elibrary: | 13466146 |
| Chemical Abstracts: | 2004:671081 |
| Chemical Abstracts (print): | 141:318408 |
| OpenAlex: | W2093591975 |