Study of CuCoZnAl oxide as catalyst for the hydrogen production from ethanol reforming

Autor:	Luis A. Arrúa, Alberto J. Marchi, Manuel F. Gomez, Agustín E. Galetti, M.C. Abello
Rok vydání:	2008
Předmět:	Coprecipitation Process Chemistry and Technology Inorganic chemistry Oxide General Chemistry Catalysis Thermogravimetry Steam reforming chemistry.chemical_compound chemistry Specific surface area Temperature-programmed reduction Hydrogen production
Zdroj:	Catalysis Communications. 9:1201-1208
ISSN:	1566-7367
DOI:	10.1016/j.catcom.2007.11.015
Popis:	Ethanol steam reforming was studied over CuCoZnAl oxide with the addition of potassium. The catalyst was prepared by the coprecipitation method and characterized by X-ray diffraction, thermogravimetry, Raman spectroscopy, temperature programmed reduction, BET specific surface area and SEM-EDAX. The influence of reaction temperature was examined between 400 and 600 °C with a H2O/C2H5OH molar ratio of 3.8. At 600 °C, the catalyst was very active with an ethanol conversion of 100%. The main products were CO2 and CO and minor amounts of CH4. The hydrogen yield was 5.2 mol of H2 per mol of ethanol, which means a high hydrogen selectivity (87%). Stable activity and selectivity were obtained at 600 °C which could be attributed to the removing of carbonaceous deposits.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f1d6ac939f308a79e9c8f427ed26dbf https://doi.org/10.1016/j.catcom.2007.11.015 Zobrazit plný text záznamu Full Text from ScienceDirect