English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/202330
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Ni catalysts based on attapulgite for hydrogen production through the glycerol steam reforming reaction

AuthorsCharisiou, Nikolaos D.; Sebastian, Victor; Hinder, Steven J.; Baker, Mark A.; Polychronopoulou, Kyriaki; Goula, Maria A.
Natural clays
Hydrogen production
Ni catalysts
Steam reforming
Issue Date2019
PublisherMultidisciplinary Digital Publishing Institute
CitationCatalysts 9(8): 650 (2019)
AbstractAttapulgite (ATP, a natural clay) was used as carrier to produce a nickel-based catalyst (Ni/ATP) for the work that is presented herein. Its catalytic performance was comparatively assessed with a standard Ni/Al2O3 sample for the glycerol steam reforming (GSR) reaction. It was shown that the ATP support led to lower mean Ni crystallite size, i.e., it increased the dispersion of the active phase, to the easier reduction of NiO and also increased the basicity of the catalytic material. It was also shown that it had a significant effect on the distribution of the gaseous products. Specifically, for the Ni/ATP catalyst, the production of liquid effluents was minimal and subsequently, conversion of glycerol into gaseous products was higher. Importantly, the Ni/ATP favored the conversion into H2 and CO2 to the detriment of CO and CH4. The stability experiments, which were undertaken at a low WGFR, showed that the activity of both catalysts was affected with time as a result of carbon deposition and/or metal particle sintering. An examination of the spent catalysts revealed that the coke deposits consisted of filamentous carbon, a type that is known to encapsulate the active phase with fatal consequences.
DescriptionThis article belongs to the Special Issue Catalysis for Energy Production.
Publisher version (URL)https://doi.org/10.3390/catal9080650
Appears in Collections:(ICMA) Artículos
Files in This Item:
File Description SizeFormat 
Nicatalysreact.pdf8,1 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.