Journal
FUEL PROCESSING TECHNOLOGY
Volume 128, Issue -, Pages 432-440Publisher
ELSEVIER
DOI: 10.1016/j.fuproc.2014.08.006
Keywords
Nickel; Catalyst; Ethanol; Dry reforming
Funding
- Sao Paulo Research Foundation [FAPESP - 2009/15984-0]
- Brazilian federal research funding council, CAPES [23038.006988/2011-50]
- CNPq [306074/2012-5, 124218/2010-5]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [09/15984-0] Funding Source: FAPESP
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Nickel catalysts were prepared on single-oxide supports of Al2O3, CeO2, MgO and ZrO2 by impregnation of the oxide with a solution of Ni(NO3)(2) in methanol. The catalysts were characterized by N-2 physisorption (BET method), TPR, XRD, SEM and Raman spectroscopy and tested in dry reforming of ethanol (DRE). It was observed that the interaction with the support and Ni reducibility depended on the support used. According to TPR results, NiO species supported on CeO2 and Al2O3 were the easiest to reduce. Possibly, this behavior combined to redox properties of CeO2 inhibited side undesirable reactions and contributed to the higher selectivity for H-2 on the NiCe catalyst. The catalytic test at 750 degrees C on NiCe showed better H-2 selectivity than the test at 700 degrees C, suggesting that the higher temperature enhanced CO2 conversion and hindered carbon deposition in dry reforming of ethanol (c) 2014 Published by Elsevier B.V.
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