Zeng, Yuxuan ; Chen, Guoxing ; Wang, Jianqiao ; Zhou, Rusen ; Sun, Yifei ; Weidenkaff, Anke ; Shen, Boxiong ; Tu, Xin (2022)
Plasma-catalytic biogas reforming for hydrogen production over K-promoted Ni/Al2O3 catalysts: Effect of K-loading.
In: Journal of the Energy Institute, 104
doi: 10.1016/j.joei.2022.06.008
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Biogas reforming for hydrogen production was achieved in a tabular dielectric barrier discharge (DBD) system using K-promoted Ni/Al2O3 catalysts with varying potassium loadings. The Ni-K/Al2O3 catalyst with 2 wt% K loading showed the best reforming performance with a CH4 conversion of 32% and a CO2 conversion of 23%, resulting in the highest energy efficiency of 0.67 mmol kJ(-1) among the studied catalysts. In comparison to the unpromoted Ni/Al2O3 catalyst, the presence of 2 wt% potassium loading enhanced H-2 production while suppressing CO formation, increasing the relative amount of H-2 in the syngas. Furthermore, the Ni-K/Al2O3 catalyst (2 wt% K) exhibited the most pronounced plasma-catalytic synergy. The results of thermal gravimetry analysis (TGA) revealed that increasing potassium loading in the catalysts increased carbon production by generating more inactive and less active carbonaceous species (C-gamma and C-beta) on the catalyst surfaces. This study demonstrates that by tuning the potassium loading of Ni/Al2O3 based catalysts, the performance of plasma-catalytic biogas reforming at low temperatures can be enhanced.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Zeng, Yuxuan ; Chen, Guoxing ; Wang, Jianqiao ; Zhou, Rusen ; Sun, Yifei ; Weidenkaff, Anke ; Shen, Boxiong ; Tu, Xin |
| Art des Eintrags: | Bibliographie |
| Titel: | Plasma-catalytic biogas reforming for hydrogen production over K-promoted Ni/Al2O3 catalysts: Effect of K-loading |
| Sprache: | Englisch |
| Publikationsjahr: | Oktober 2022 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the Energy Institute |
| Jahrgang/Volume einer Zeitschrift: | 104 |
| DOI: | 10.1016/j.joei.2022.06.008 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S174396712... |
| Kurzbeschreibung (Abstract): | Biogas reforming for hydrogen production was achieved in a tabular dielectric barrier discharge (DBD) system using K-promoted Ni/Al2O3 catalysts with varying potassium loadings. The Ni-K/Al2O3 catalyst with 2 wt% K loading showed the best reforming performance with a CH4 conversion of 32% and a CO2 conversion of 23%, resulting in the highest energy efficiency of 0.67 mmol kJ(-1) among the studied catalysts. In comparison to the unpromoted Ni/Al2O3 catalyst, the presence of 2 wt% potassium loading enhanced H-2 production while suppressing CO formation, increasing the relative amount of H-2 in the syngas. Furthermore, the Ni-K/Al2O3 catalyst (2 wt% K) exhibited the most pronounced plasma-catalytic synergy. The results of thermal gravimetry analysis (TGA) revealed that increasing potassium loading in the catalysts increased carbon production by generating more inactive and less active carbonaceous species (C-gamma and C-beta) on the catalyst surfaces. This study demonstrates that by tuning the potassium loading of Ni/Al2O3 based catalysts, the performance of plasma-catalytic biogas reforming at low temperatures can be enhanced. |
| Freie Schlagworte: | Non-thermal plasma, Plasma catalysis, Biogas reforming, Synthesis gas, Synergistic effect |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement |
| Hinterlegungsdatum: | 20 Dez 2022 08:28 |
| Letzte Änderung: | 20 Dez 2022 08:28 |
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