Hydrogen production by glycerol steam reforming: How Mg doping affects the catalytic behaviour of Ni/Al2O3 catalysts

Dieuzeide, María Laura; Laborde, Miguel; Amadeo, Norma; Cannilla, C.; Bonura, Giuseppe; Frusteri, F.

doi:10.1016/j.ijhydene.2015.12.009

Cited by 88 publications

(36 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This type of catalyst, known as hydrotalcite, is a double-layered oxide that, upon calcination and/or reduction, possesses a high surface area, as well as basic properties and metallic crystals both disperse and thermally stable. Furthermore, nickel-based formulations have also been studied in our group for glycerol steam reforming [11] and are recently being applied in methane steam reforming [12].…”

Section: Reforming Catalystsmentioning

confidence: 99%

Hydrogen Production from Bioethanol: Behavior of a Carbon Oxide Preferential Oxidation Catalyst

et al. 2017

View full text Add to dashboard Cite

Hydrogen is recognized as a promising green energy source, particularly when used to feed a polymer electrolyte membrane fuel cell (PEMFC). Here, hydrogen was obtained by bioethanol steam reforming with CO and CO 2 as primary sub products. Since the cell anode is extremely sensitive to poisoning with CO, watergas shift (WGS) and carbon oxide preferential oxidation (COPROX) reactors were employed for hydrogen purification. Catalysts prepared by our lab were tested at pilot plant scale in both the reformer and COPROX unit, where different active phase distributions, stoichiometric excess of air, and reaction temperatures were tested. The use of two different COPROX units with intermediate air injection was also considered. The as-prepared catalysts showed good stability and performance.

show abstract

Section: Reforming Catalystsmentioning

confidence: 99%

Hydrogen Production from Bioethanol: Behavior of a Carbon Oxide Preferential Oxidation Catalyst

et al. 2017

View full text Add to dashboard Cite

show abstract

“…However, glycerol can be further used for producing H 2 via steam reforming, partial oxidation and pyrolysis reactions [93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,…”

Section: Introductionmentioning

confidence: 99%

Glycerol Production and Transformation: A Critical Review with Particular Emphasis on Glycerol Reforming Reaction for Producing Hydrogen in Conventional and Membrane Reactors

et al. 2017

View full text Add to dashboard Cite

Glycerol represents an emerging renewable bio-derived feedstock, which could be used as a source for producing hydrogen through steam reforming reaction. In this review, the state-of-the-art about glycerol production processes is reviewed, with particular focus on glycerol reforming reactions and on the main catalysts under development. Furthermore, the use of membrane catalytic reactors instead of conventional reactors for steam reforming is discussed. Finally, the review describes the utilization of the Pd-based membrane reactor technology, pointing out the ability of these alternative fuel processors to simultaneously extract high purity hydrogen and enhance the whole performances of the reaction system in terms of glycerol conversion and hydrogen yield.

show abstract

“…2 24 who observed better dispersion of Ni at lower Mg content due to inhibited diffusion during reduction, as a consequence of the formation of a mixed Ni-Mg oxide phase. The formation of a mixed Ni-Fe phase, such as NiFe 2 O 4 , is not evident from the diffraction patterns, but has been previously described in the literature.…”

mentioning

confidence: 95%

Mg-promotion of Ni natural clay-supported catalysts for dry reforming of methane

et al. 2018

View full text Add to dashboard Cite

Mg-promotion of natural clay based Ni-catalysts was considered, as a way of boosting the dry reforming of methane (DRM) activity of these materials. The results of the DRM experiments performed at temperatures from 600 C to 850 C evidenced much higher methane and CO 2 conversions for the Mg-promoted catalysts. Mg-promotion led of course to a significant increase of CO 2 -adsorption ability (basicity).However, the increased catalytic activity of the Mg-promoted materials was rather linked to increasedNi-dispersion and Ni 0 crystallite size. Indeed, independent of the physico-chemical properties of the support, the presence of Mg led to the formation of a MgNiO 2 mixed phase that, upon reduction, resulted in the formation of metallic Ni clusters having sizes around 7-9 nm, considerably smaller than in any of the non-promoted catalysts. Carbon formation was found to take place to a greater extent in the presence of the Mg-promoted catalysts, due to C-H bond activation leading also to favored direct methane decomposition (DMD). In spite of this, the activity of the Mg-promoted catalysts was well maintained over 5 hour DRM experiments performed at 750 C.

show abstract

Hydrogen production by glycerol steam reforming: How Mg doping affects the catalytic behaviour of Ni/Al2O3 catalysts

Cited by 88 publications

References 30 publications

Hydrogen Production from Bioethanol: Behavior of a Carbon Oxide Preferential Oxidation Catalyst

Hydrogen Production from Bioethanol: Behavior of a Carbon Oxide Preferential Oxidation Catalyst

Glycerol Production and Transformation: A Critical Review with Particular Emphasis on Glycerol Reforming Reaction for Producing Hydrogen in Conventional and Membrane Reactors

Mg-promotion of Ni natural clay-supported catalysts for dry reforming of methane

Contact Info

Product

Resources

About