TY - GEN
T1 - GLYCEROL STEAM REFORMING FOR THE PRODUCTION OF HYDROGEN OVER REMARKABLY ACTIVE AND STABLE PEROVSKITE SUPPORTED Ni CATALYSTS
AU - Luisetto, Igor
AU - Tsiotsias, Anastasios I.
AU - Charisiou, Nikolaos D.
AU - Beka, Andreas
AU - Polychronopoulou, Kyriaki
AU - Goula, Maria A.
N1 - Funding Information:
We gratefully acknowledge that this research has been co-financed by the European Union and Greek national funds under the call “Greece – China Call for Proposals for Joint RT&D Projects” (Project code: T7DKI-00388).
Publisher Copyright:
© 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.
PY - 2022
Y1 - 2022
N2 - The glycerol steam reforming (GSR) reaction for hydrogen production, was investigated over Ni catalysts supported on perovskite-type oxides (Ni/BaZrO3, Ni/CaZrO3 and Ni/SrZrO3) synthesized via the auto-combustion method. The prepared catalysts were characterized via XRD and H2-TPR, showing a high phase purity (limited formation of alkaline earth carbonate impurity phases) and reducibility. Catalytic activity evaluation revealed that Ni/CaZrO3 (CaZ-Ni7) and Ni/SrZrO3 (SrZ-Ni7) were remarkably active for the conversion of glycerol towards gaseous products, yielding high amounts of H2 and preventing its consumption via side-reactions, like COx hydrogenation. Ni/BaZrO3 (BaZ-Ni7) was found to be less effective for the gasification of glycerol, providing an overall lower H2 yield. Ni/SrZrO3 (SrZ-Ni7) was shown to be the best-performing and most resilient catalyst, exhibiting a remarkably stable performance during 20h time-on-stream at 600 °C, as it outperforms many of the employed catalysts in the literature. The produced gas has a very high H2/CO ratio (> 20) and thus, could be fed into fuel cell stacks without extensive downstream processing.
AB - The glycerol steam reforming (GSR) reaction for hydrogen production, was investigated over Ni catalysts supported on perovskite-type oxides (Ni/BaZrO3, Ni/CaZrO3 and Ni/SrZrO3) synthesized via the auto-combustion method. The prepared catalysts were characterized via XRD and H2-TPR, showing a high phase purity (limited formation of alkaline earth carbonate impurity phases) and reducibility. Catalytic activity evaluation revealed that Ni/CaZrO3 (CaZ-Ni7) and Ni/SrZrO3 (SrZ-Ni7) were remarkably active for the conversion of glycerol towards gaseous products, yielding high amounts of H2 and preventing its consumption via side-reactions, like COx hydrogenation. Ni/BaZrO3 (BaZ-Ni7) was found to be less effective for the gasification of glycerol, providing an overall lower H2 yield. Ni/SrZrO3 (SrZ-Ni7) was shown to be the best-performing and most resilient catalyst, exhibiting a remarkably stable performance during 20h time-on-stream at 600 °C, as it outperforms many of the employed catalysts in the literature. The produced gas has a very high H2/CO ratio (> 20) and thus, could be fed into fuel cell stacks without extensive downstream processing.
KW - Catalytic stability
KW - Glycerol steam reforming
KW - Hydrogen production
KW - Nickel catalysts
KW - Perovskite oxides
UR - https://www.scopus.com/pages/publications/85147196478
M3 - Conference contribution
AN - SCOPUS:85147196478
T3 - Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2
SP - 77
EP - 79
BT - Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference
A2 - Dincer, Ibrahim
A2 - Colpan, Can Ozgur
A2 - Ezan, Mehmet Akif
T2 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022
Y2 - 26 June 2022 through 30 June 2022
ER -
