H2-rich syngas from glycerol dry reforming over Ni-based catalysts supported on alumina from aluminum dross

The performance of Ni-based catalyst supported on γ-Al2O3 for glycerol dry reforming (GDR) reaction was investigated in the current study. γ-Al2O3 was prepared from aluminum dross (AD) before use as catalyst support. Al2O3 was extracted using three different techniques assisted with ultrasonication:...

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Bibliographic Details
Published in:International journal of hydrogen energy 2021-09, Vol.46 (60), p.30959-30975
Main Authors: Roslan, Nurul Asmawati, Abidin, Sumaiya Zainal, Osazuwa, Osarieme Uyi, Chin, Sim Yee, Taufiq-Yap, Y.H.
Format: Article
Language:English
Subjects:
Alumina
Aluminum dross
Catalyst support
Dry reforming
Glycerol
Ni-based catalyst
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Summary:The performance of Ni-based catalyst supported on γ-Al2O3 for glycerol dry reforming (GDR) reaction was investigated in the current study. γ-Al2O3 was prepared from aluminum dross (AD) before use as catalyst support. Al2O3 was extracted using three different techniques assisted with ultrasonication: acid leaching with ammonia precipitation, acid leaching with re-precipitation of HCl, and alkaline leaching with ammonium hydrogen carbonate. The results show that extracted γ-Al2O3 3 (EGA3) with the highest purity and the surface area of 267.5 m2 g−1 was produced from acid leaching with ammonia precipitation technique at a calcination temperature of 800 °C. A series of Ni/EGA3 (5%, 10%, 15% and 20%) catalysts were tested and it was found that the catalytic activity was increased in the order of 5%Ni/EGA3 
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2021.03.162