Diesel steam reforming with a nickel–alumina spinel catalyst for solid oxide fuel cell application

Fauteux‐Lefebvre, Clémence; Abatzoglou, Nicolas; Braidy, Nadi; Achouri, Inès Esma

doi:10.1016/j.jpowsour.2011.05.003

Cited by 56 publications

(29 citation statements)

References 23 publications

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“…It is constituted of a mixture of metal oxides, mainly Fe, Mg, Al and, to a lesser extent, Cr, V, Ti, Si, Na, Mn, Ca, K, P, Zr and Zn [34,39]. The main crystalline phases present in this residue are: MgFe 2 O 4 , FeAl 2 O 4 , and a solid solution of both Mg(Fe,Al) 2 O 4 and MgO [49].…”

Section: Ugsomentioning

confidence: 99%

“…Catalyst supports, such as hydrotalcite, favor the presence of small Ni particles compared to NiO/α-Al 2 O 3 and NiO/CaO-Al 2 O 3 catalysts [32]: the smaller the particles, the lower the C deposits. Spinel type catalysts such as NiAl 2 O 4 /Al 2 O 3 -YSZ have been reported to be effective for liquid hydrocarbon SR with high resistance to C deposits [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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Bio-Oil Steam Reforming over a Mining Residue Functionalized with Ni as Catalyst: Ni-UGSO

et al. 2017

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Bio-oil reforming is considered for syngas or H 2 production. In this work, we studied the steam reforming (SR) of two raw bio-oils without adding external steam, using a recently-developed catalyst, Ni-UGSO. Experiments were performed at temperature (T) = 750-850 • C and weight hourly space velocity (WHSV) = 1.7-7.1 g/g cat /h to assess C conversion (X C ) and product yields. The results show that, in all conditions and with both bio-oils tested, the catalyst is stable for the entire duration of the tests (~500 min) even when some C deposition occurred and that only at the highest WHSV tested there is a slight deactivation. In all tests, catalytic activity remained constant after a first, short, transient state, which corresponded to catalyst activation. The highest yields and conversions, with Y H 2 , Y CO and X C of 94%, 84% and 100%, respectively, were observed at temperatures above 800 • C and WHSV = 1.7 g/g cat /h. The amount of H 2 O in the bio-oils had a non-negligible effect on catalyst activity, impacting Y H 2 , Y CO and X C values. It was observed that, above a critical amount of H 2 O, the catalyst was not fully activated. However, higher H 2 O content led to the reduction of C deposits as well as lower Y H 2 and Y CO and, through the water-gas-shift reaction, to higher Y CO 2 (CO 2 selectivity). Fresh and spent catalysts were analyzed by physisorption (BET), X-ray diffraction, scanning electron microscopy and thermogravimetric analysis: the results reveal that, during the oils' SR reaction, the initial spinel (Ni-Fe-Mg-Al) structures decreased over time-on-stream (TOS), while metallic Ni, Fe and their alloy phases appeared. Although significant sintering was observed in used catalysts, especially at high H 2 O/C ratio, the catalyst's specific surface generally increased; the latter was attributed to the presence of nanometric metallic Ni and Ni-Fe alloy particles formed by reduction reactions. A small amount of C (4%) was formed at low H 2 O/C.

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Section: Ugsomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bio-Oil Steam Reforming over a Mining Residue Functionalized with Ni as Catalyst: Ni-UGSO

et al. 2017

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“…A final metallic Ni mass load of 5% w/w was chosen for reforming experiments. This choice was based on a previous publication [29] with other Nibased catalytic formulations. After impregnation, the so-treated CNF were dried overnight at 120°C and calcined at 290°C for 8 h under inert (Ar) atmosphere.…”

Section: Cnf Production and Functionalizationmentioning

confidence: 99%

Ni-doped Carbon Nanofilaments (Ni-CNF): Preparation and Use as Reforming Catalyst

Abatzoglou¹,

Plascencia²

2015

IJTAN

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“…Moreover, in our previous studies we showed that the NiAl 2 O 4 preparation method influenced the distribution of the metallic Ni species and the resultant activity and stability in various methane reforming processes [6,7]. Nevertheless, little is known about the performance of these nickel catalysts in the reforming of heavy hydrocarbons, especially in the case of gasoline [8,9].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of nickel–alumina spinel (NiAl2O4) catalysts for isooctane steam reforming

Jiménez‐González

Boukha

Rivas

et al. 2015

International Journal of Hydrogen Energy

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Diesel steam reforming with a nickel–alumina spinel catalyst for solid oxide fuel cell application

Cited by 56 publications

References 23 publications

Bio-Oil Steam Reforming over a Mining Residue Functionalized with Ni as Catalyst: Ni-UGSO

Bio-Oil Steam Reforming over a Mining Residue Functionalized with Ni as Catalyst: Ni-UGSO

Ni-doped Carbon Nanofilaments (Ni-CNF): Preparation and Use as Reforming Catalyst

Behaviour of nickel–alumina spinel (NiAl2O4) catalysts for isooctane steam reforming

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