Dry reforming of methane over Zr- and Y-modified Ni/Mg/Al double-layered hydroxides
Résumé
Zr- and Y-promoted Ni/Mg/Al double-layered hydroxides were investigated in dry reforming of methane, DRM (10% CH4, CH4/CO2 = 1, GHSV = 20,000 h−1) for the first time. Modification of the double-layered hydroxides with 5 wt% of zirconium and 0.4 wt% of yttrium resulted in the formation of ZrO2-Y2O3 solid solution, which largely contributed to the enhancement of catalyst's stability with time-on-stream at 700 °C in DRM. Also, the modified catalyst demonstrated the limitation of the reverse WGS reaction, as confirmed by powder XRD due to the absence of the rhombohedral hydrotalcite structure.
Domaines
Chimie
Fichier principal
wirk et al. - 2018 - Dry reforming of methane over Zr- and Y-modified N.pdf (2.96 Mo)
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