Experimental Verification of Kinetics and Internal Diffusion Impact on Low Temperature Steam Reforming of a Propane-Methane Mixture over Ni-Based Catalyst Full article
| Journal |
Chemical Engineering Journal
ISSN: 1385-8947 , E-ISSN: 1873-3212 |
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| Output data | Year: 2022, Volume: 429, Article number : 132205, Pages count : 11 DOI: 10.1016/j.cej.2021.132205 | ||||
| Tags | Associated petroleum gas; Nickel catalysts; Steam reforming; Hydrogenolysis; Catalyst effectiveness factor; Thiele modulus | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 18-29-24015 (АААА-А18-118111690010-7) |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0011 |
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.
Cite:
Shigarov A.B.
, Uskov S.I.
, Potemkin D.I.
, Snytnikov P.V.
Experimental Verification of Kinetics and Internal Diffusion Impact on Low Temperature Steam Reforming of a Propane-Methane Mixture over Ni-Based Catalyst
Chemical Engineering Journal. 2022. V.429. 132205 :1-11. DOI: 10.1016/j.cej.2021.132205 WOS Scopus РИНЦ AN OpenAlex
Experimental Verification of Kinetics and Internal Diffusion Impact on Low Temperature Steam Reforming of a Propane-Methane Mixture over Ni-Based Catalyst
Chemical Engineering Journal. 2022. V.429. 132205 :1-11. DOI: 10.1016/j.cej.2021.132205 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jun 12, 2021 |
| Accepted: | Aug 28, 2021 |
| Published online: | Sep 6, 2021 |
| Published print: | Feb 1, 2022 |
Identifiers:
| Web of science: | WOS:000722707700004 |
| Scopus: | 2-s2.0-85114948979 |
| Elibrary: | 47066560 |
| Chemical Abstracts: | 2021:2035480 |
| OpenAlex: | W3198605426 |