Methane Partial Oxidation over Porous Nickel Monoliths: The Effects of NiO-MgO Loading on Microstructural Parameters and Hot-Spot Temperature | Sciact - CRIS-system of Boreskov Institute of Catalysis

Methane Partial Oxidation over Porous Nickel Monoliths: The Effects of NiO-MgO Loading on Microstructural Parameters and Hot-Spot Temperature Full article

Journal

Materials Letters
ISSN: 0167-577X , E-ISSN: 1873-4979

Output data

Year: 2019, Volume: 236, Pages: 264-266 Pages count : 3 DOI: 10.1016/j.matlet.2018.09.175

Tags

Porous nickel; Structured catalyst; Partial oxidation; Methane; Nanoparticles; Interfaces

Authors

Brayko A.S. ¹ , Shigarov A.B. ¹ , Kirillov V.A. ^1,2 , Kireenkov V.V. ¹ , Kuzin N.A. ³ , Sobyanin V.A. ¹ , Snytnikov P.V. ^1,2,3 , Kharton V.V. ⁴

Affiliations

1	Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, Novosibirsk 630090, Russia
2	Novosibirsk State University, Pirogova St., 2, Novosibirs 630090, Russia
3	UNICAT Ltd, Pr. Lavrentieva, 5, Novosibirsk 630090, Russia
4	Institute of Solid State Physics, Moscow District, Academician Ossipyan str., 2, Chernogolovka 142432, Russia

Funding (1)

Russian Science Foundation

17-79-30071

Developments of highly efficient catalysts for hydrocarbon fuel conversion have a critical importance for the solid oxide fuel cell (SOFC) technology and hydrogen production. In this work, a series of catalytic monoliths made of porous Ni ribbons with various NiO-MgO loadings were prepared via impregnation with the metal acetates and calcination. The catalysts were tested for the partial oxidation of methane under adiabatic conditions without inlet flow preheating at air excess factors, O2/(2·CH4), varying in the range 0.3–0.4. When NiO-MgO loading increases, the inlet hot spot temperature was found to exhibit minima reflecting changes of the CH4 reforming rate-determining factors in the catalyst frontal layer. A model describing this unusual phenomenon in terms of the volumetric activity and gas permeability of the porous catalysts, was proposed. The model was validated using experimental results of the catalytic tests, high-resolution transmission electron microscopy and mercury porosimetry.

Brayko A.S. , Shigarov A.B. , Kirillov V.A. , Kireenkov V.V. , Kuzin N.A. , Sobyanin V.A. , Snytnikov P.V. , Kharton V.V.
Methane Partial Oxidation over Porous Nickel Monoliths: The Effects of NiO-MgO Loading on Microstructural Parameters and Hot-Spot Temperature
Materials Letters. 2019. V.236. P.264-266. DOI: 10.1016/j.matlet.2018.09.175 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Sep 7, 2018
Accepted:	Sep 29, 2018
Published online:	Oct 22, 2018
Published print:	Feb 1, 2019

Web of science:	WOS:000450594300068
Scopus:	2-s2.0-85055171748
Elibrary:	38644508
Chemical Abstracts:	2018:2000588
Chemical Abstracts (print):	169:494931
OpenAlex:	W2898378678

DB	Citing
Scopus	9
Web of science	9
Elibrary	13
OpenAlex	10