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Preparation and improvement of the mesoporous nanostructured nickel catalysts supported on magnesium aluminate for syngas production by glycerol dry reforming.
- Source :
-
International Journal of Hydrogen Energy . Jun2021, Vol. 46 Issue 43, p22454-22462. 9p. - Publication Year :
- 2021
-
Abstract
- Dry reforming of glycerol is an interesting method for syngas production due to its H 2 /CO ≈ 1 that is suitable for FT synthesis. In this study, the performance of the Ni/MgO.Al 2 O 3 catalysts with different nickel contents was investigated in glycerol dry reforming. The MgO.Al 2 O 3 carrier was prepared by a simple sol-gel method and the nickel-based catalysts were synthesized by the wet impregnation method. The prepared catalysts possessed high BET surface area and pore volume. The TPR analysis showed a strong interaction between Ni and the catalyst support. The results demonstrated that the glycerol conversion decreased by increasing in CO 2 /glycerol (GRR) molar ratio. All the prepared samples showed high stability in glycerol dry reforming during 25 h of reaction, indicating the high resistance of the catalysts against carbon formation. Also, 10 wt%Ni/MgO.Al 2 O 3 catalysts possessed the highest catalytic performance (52% of glycerol conversion at 750 °C) due to the high dispersion of nickel on the prepared carrier. • Dry reforming of glycerol was investigated over Ni/MgO.Al 2 O 3 catalysts. • The catalyst support was prepared by a simple sol-gel method. • The catalyst support possessed a high BET surface area. • The prepared catalysts exhibited high stability in glycerol dry reforming reaction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03603199
- Volume :
- 46
- Issue :
- 43
- Database :
- Academic Search Index
- Journal :
- International Journal of Hydrogen Energy
- Publication Type :
- Academic Journal
- Accession number :
- 150792631
- Full Text :
- https://doi.org/10.1016/j.ijhydene.2021.04.072