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The Effect of Modifiers on the Performance of Ni/CeO(2) and Ni/La(2)O(3) Catalysts in the Oxy–Steam Reforming of LNG

This work interrogates for the first time the catalytic properties of various monometallic Ni catalysts in the oxy-steam reforming of LNG. Various research techniques, including X-ray diffraction (XRD), specific surface area and porosity analysis (BET method), scanning electron microscopy with X-ray...

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Detalles Bibliográficos
Autores principales: Mosinska, Magdalena, Maniukiewicz, Waldemar, Szynkowska-Jozwik, Malgorzata I., Mierczynski, Pawel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8396481/
https://www.ncbi.nlm.nih.gov/pubmed/34445779
http://dx.doi.org/10.3390/ijms22169076
Descripción
Sumario:This work interrogates for the first time the catalytic properties of various monometallic Ni catalysts in the oxy-steam reforming of LNG. Various research techniques, including X-ray diffraction (XRD), specific surface area and porosity analysis (BET method), scanning electron microscopy with X-ray microanalysis (SEM-EDS), temperature-programmed desorption of ammonia (TPD-NH(3)), temperature-programmed reduction (TPR-H(2)) and the FTIR method, were used to study their physicochemical properties. The mechanism of the oxy-steam reforming of LNG is also discussed in this paper. The high activity of monometallic catalysts supported on 5% La(2)O(3)–CeO(2) and 5% ZrO(2)–CeO(2) oxides in the studied process have been proven and explained on the basis of their acidity, specific surface area, sorption properties in relation to the reaction products, the crystallite size of the metallic nickel and their phase composition.