Copper Tricomponent Catalysts Application for Hydrogen Production from Ethanol

• Published in: Catalysts 2021-05, Vol.11 (5), p.575
• Main Authors: Hamryszak, Łukasz, Kulawska, Maria, Madej-Lachowska, Maria, Śliwa, Michał, Samson, Katarzyna, Ruggiero-Mikołajczyk, Małgorzata
• Format: Article
• Language: English
• Subjects: Bimetals; Carbon monoxide; Catalysts; Cerium; Chemical reactions; Clean technology; Continuous flow; Copper; copper–zirconium catalysts; Efficiency; Ethanol; ethanol steam reforming; Experiments; Hydrogen; hydrogen fuel cells; Hydrogen production; Nickel; non-noble metal catalysts; Reforming; Selectivity; Zirconium
• ISSN: 2073-4344; 2073-4344
• DOI: 10.3390/catal11050575

The application of copper-based catalysts in the production of pure hydrogen in the steam reforming of ethanol was performed. The tricomponent Cu/Zr catalysts with about 4 mass% addition of nickel, cobalt, or cerium have been prepared in our laboratory. The properties of obtained catalysts were compared with bimetallic Cu/Zr catalyst prepared and tested according to the same procedure. Catalytic tests were carried out in the continuous flow fixed–bed reactor in the wide temperature range of 433–593 K for initial molar ratio of ethanol to water equal to 1:3. Catalysts were characterized by XRD, TPR, CO2–TPD, and TPO methods. Cu/Zr/Ce catalyst proved to be the best; hydrogen yield reached the value of 400 L/(kgcat.∙h), selectivity towards carbon monoxide was below 0.5% and the one towards methane wasnot detected. Additions of Ni or Co did not bring significant improvement in activity.