Production of Renewable Hydrogen by Aqueous-Phase Reforming of Glycerol Over Ni-Cu Catalysts Derived from Hydrotalcite Precursors

Tuza, Pablo V.; Manfro, Robinson L.; Ribeiro, Nielson F.P.; Souza, Mariana M.V.M.

doi:10.1007/978-3-319-07896-0_24

Cited by 5 publications

(8 citation statements)

References 33 publications

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“…Hydrogen production is one of the most important alternative energy technologies for meeting future global energy needs. It is environmentally clean and efficient, compared to conventional petroleum-based fuels [1][2][3][4][5][6][7][8][9]. 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].…”

Section: Introductionmentioning

confidence: 99%

“…It is environmentally clean and efficient, compared to conventional petroleum-based fuels [1][2][3][4][5][6][7][8][9]. 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].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

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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“…This is the very reason why glycerol steam reforming has been given high importance, compared to other processes for converting glycerol into hydrogen such as supercritical water reforming [70], or aqueous phase reforming [71]. The high energetic requirements for vaporization of the reaction mixture, reduces the energetic efficiency of GSR, but nevertheless, a huge amount of water is needed to optimize the gasification of carbon, preventing its deposition as coke on the catalyst.…”

Section: Fundamentalsmentioning

confidence: 99%

Upgrading the Glycerol from Biodiesel Production as a Source of Energy Carriers and Chemicals—A Technological Review for Three Chemical Pathways

Rodrigues

Bordado²,

Santos³

2017

Energies

129

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Abstract:Glycerol is a by-product of biodiesel obtained from biomass, accounting for 10% of the biodiesel production. In the context of a green economy, aiming for a reduction of the emission of atmospheric greenhouse gases emissions, the demand of biodiesel is expected to increase vastly, in parallel with a side glut supply of glycerol. Given the high cost of biodiesel compared with its fossil congener, upgrading of glycerol into added-value products can represent a secondary income source and turn the production of such alternative fuels economically sustainable in the long term. The glycerol obtained as by-product of biodiesel from biomass is in a crude form and must be purified. Some industrial solutions and applications were therein geared. The survey presented in this work, based on a reviewing of the existing literature, examines three routes for the valuing glycerol into energy carriers and chemicals, namely, carbonation, acylation, and steam reforming to hydrogen. The latter is embodied of great interest and importance, insofar that hydrogen by itself is considered as straighforward clean fuel for transportation uses, due to its high calorific power and to recent advances in fuel cells. We also have focused on the chain value from biomass to energies carriers through these pathways.

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“…"Glycerol steam reforming," BioResources 11(4), 10173-10189. 10175 reforming (APR) (Cortright et al 2002;Manfro et al 2011;Menezes et al 2011;Tuza et al 2013), and supercritical water (SCW) reforming reactions (Byrd et al 2008;Gutiérrez Ortiz et al 2013;Pairojpiriyakul et al 2013). However, steam reforming has attracted the most attention, partially due to the fact that the process is widely used in industry, and it would require only minor alterations in existing systems if the feedstock was changed from natural gas or naphtha to glycerol (Silva et al 2015).…”

Section: H Ooc R R Oh R Coor C H Oh  €mentioning

confidence: 99%

Effect of Active Metal Supported on SiO2 for Selective Hydrogen Production from the Glycerol Steam Reforming Reaction

Charisiou¹,

Papageridis²,

Siakavelas³

et al. 2016

BioResources

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The performance of nickel, cobalt, and copper supported on silica as catalysts was evaluated for the glycerol steam reforming (GSR) reaction. The samples were characterized by nitrogen-porosimetry according to Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), and inductively coupled plasma atomic emission spectroscopy (ICP-AES), while the deposited carbon on the catalytic surface was measured with a CHN-analyzer. Catalysts were studied in order to investigate the effect of the reaction temperature on (i) glycerol total conversion, (ii) glycerol conversion to gaseous products, (iii) hydrogen selectivity and yield, (iv) selectivity of gaseous products, and (v) selectivity of liquid products. The results showed that the Ni based on silica (Ni/Si) catalyst was more active and produced less liquid effluents than the catalysts that used an active metal such as Co or Cu. Moreover, the H2 yield from the Ni/Si catalyst was very close to the theoretical maximum predicted by thermodynamics, and the CO2 production was favoured in comparison to CO production, which is important for use in fuel cells.

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Production of Renewable Hydrogen by Aqueous-Phase Reforming of Glycerol Over Ni-Cu Catalysts Derived from Hydrotalcite Precursors

Cited by 5 publications

References 33 publications

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

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

Upgrading the Glycerol from Biodiesel Production as a Source of Energy Carriers and Chemicals—A Technological Review for Three Chemical Pathways

Effect of Active Metal Supported on SiO2 for Selective Hydrogen Production from the Glycerol Steam Reforming Reaction

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