Ce-substituted LaNiO3 mixed oxides as catalyst precursors for glycerol steam reforming

Franchini, Carlos A.; Aranzaez, Wladimir; Farias, Andréa M. Duarte de; Pecchi, Gina; Fraga, Marco A.

doi:10.1016/j.apcatb.2013.08.036

Cited by 95 publications

(56 citation statements)

References 53 publications

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“…Therefore, the partial incorporation of Ce in perovskite lattice led to the distortion of perovskite structure, and made the reduction of perovskite easier. On the other hand, La 0.5 Ce 0.5 NiO 3 catalyst has only one reduction peak at 310 C, which is due to the reduction of NiO and partial reduction of ceria-based oxides [26]. This result indicated that perovskite structure was not generated for this catalyst.…”

Section: Temperature Programmed Reduction Profilesmentioning

confidence: 92%

Steam CO 2 reforming of methane over La 1−x Ce x NiO 3 perovskite catalysts

Yang

Kim

Noh

et al. 2015

International Journal of Hydrogen Energy

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Section: Temperature Programmed Reduction Profilesmentioning

confidence: 92%

Steam CO 2 reforming of methane over La 1−x Ce x NiO 3 perovskite catalysts

Yang

Kim

Noh

et al. 2015

International Journal of Hydrogen Energy

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“…Several biomass-derived oxygenated compounds such as methanol, sorbitol, glycerol, ethylene glycol, and ethanol have been studied in aqueous phase reforming (APR) processes to produce hydrogen [2,4,10]. Of these, glycerol is of particular interest because of its ample availability (~10 wt%) as a byproduct in biodiesel production from transesterification of vegetable oils or animal fats [1,[11][12][13]. With increasing biodiesel production, the crude glycerol is also consequently produced in substantial amounts and one of the promising ways to utilise this crude glycerol is to produce hydrogen and other value-added products by reforming processes [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Optimised hydrogen production by aqueous phase reforming of glycerol on Pt/Al2O3

Subramanian

Callison

Catlow

et al. 2016

International Journal of Hydrogen Energy

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Aqueous phase reforming of glycerol was studied over a series of γ-Al2O3 supported metal nanoparticle catalysts for hydrogen production in a batch reactor. Of the metals studied, Pt/Al2O3 was found to be the most active catalyst under the conditions tested. A further systematic study on the impact of reaction parameters, including stirring speed, pressure, temperature, and substrate/metal molar ratio, was conducted and the optimum conditions for hydrogen production (and kinetic regime) were determined as 240 °C, 42 bar, 1000 rpm, and substrate/metal molar ratio ≥ 4100 for a 10 wt% glycerol feed. The glycerol conversion and hydrogen yield achieved at these conditions were 18% and 17%, respectively, with negligible CO and CH4 formation. Analysis of the spent catalyst using FTIR provides an indication that the reaction pathway includes glycerol dehydrogenation and dehydration steps in the liquid phase in addition to typical reforming and water gas shift reactions in the gas phase.

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“…Pant et al [50] observed that the presence of ceria affects the reduction of Ni 2+ species, thus enhancing the catalyst activity. It has also been suggested that the dual oxidation state (+4/+3) that ceria presents leads to oxygen release which reacts with the carbon that is deposited, thus reducing coke formation [15,[52][53][54][55].…”

Section: Effect Of the Support On The Catalytic Performancementioning

confidence: 99%

Challenges and strategies for optimization of glycerol steam reforming process

Silva

Soria

Madeira

2015

Renewable and Sustainable Energy Reviews

203

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The steam reforming of the main biodiesel by-product, glycerol, has been catching up the interest of the scientific community in the last years. The use of glycerol for hydrogen production is an advantageous option not only because glycerol is renewable but also because it's use would lead to the decrease of the price of biodiesel, thus making it more competitive. Consequently, the use of biodiesel at large scale would significantly reduce CO2 emissions comparatively to fossil fuels. Moreover, hydrogen itself is seen as a very attractive clean fuel for transportation purposes.Therefore, the industrialization of the glycerol steam reforming (GSR) process would have a tremendous global environmental impact. In the last years, intensive research regarding GSR thermodynamics, catalysts, reaction mechanisms and kinetics, and innovative reactor configurations (sorption enhanced reactors (SERs) and membrane reactors (MRs)) has been done, aiming for improving the process effectiveness. In this review, the main challenges and strategies adopted for optimization of GSR process are addressed, namely the GSR thermodynamic aspects, the last developments on catalysis and kinetics, as well as the last advances on GSR performed in SERs and MRs.

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Ce-substituted LaNiO3 mixed oxides as catalyst precursors for glycerol steam reforming

Cited by 95 publications

References 53 publications

Steam CO 2 reforming of methane over La 1−x Ce x NiO 3 perovskite catalysts

Steam CO 2 reforming of methane over La 1−x Ce x NiO 3 perovskite catalysts

Optimised hydrogen production by aqueous phase reforming of glycerol on Pt/Al2O3

Challenges and strategies for optimization of glycerol steam reforming process

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