Ni Catalyst Coating on Fecralloy<sup>®</sup> Microchanneled Foils and Testing for Methane Steam Reforming

Miguel, N. de; Manzanedo, Jaio; Thormann, J.; Pfeifer, Peter; Arias, P.L.

doi:10.1002/ceat.200900439

Cited by 14 publications

(8 citation statements)

References 32 publications

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“…Ni-Al 2 O 3 on microchannel FeCrAl was more active and stable compared to Ni on MgO or CeO 2 /Al 2 O 3 . Ni/Ce 0.5 Zr 0.5 O 2 /SBA-15 (10%) was the most active and stable among the Ni/SBA-15 monolith catalysts.…”

Section: Syngasmentioning

confidence: 99%

FeCrAl as a Catalyst Support

et al. 2020

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The iron-chromium-aluminum alloy (FeCrAl) is an exceptional support for highly exothermic and endothermic reactions that operate above 700 °C in chemically aggressive environments, where low heat and mass transfer rates limit reaction yield. FeCrAl two-and three-dimensional structured networksmonoliths, foams, and fibersmaximize mass transfer rates, while their remarkable thermal conductivity minimizes hot spots and thermal gradients. Another advantage of the open FeCrAl structure is the low pressure drop due to the high void fraction and regularity of the internal path. The surface Al 2 O 3 layer, formed after an initial thermal oxidation, supports a wide range of metal and metal oxide active phases. The aluminum oxide that adheres to the metal surface protects it from corrosive atmospheres and carbon (carburization), thus allowing FeCrAl to operate at a higher temperature. The top applications are industrial burners, in which compact knitted metal fibers distribute heat over large surface areas, and automotive tail gas converters. Future applications include producing H 2 and syngas from remote natural gas in modular units. This Review summarizes the specific preparation techniques, details process operating conditions and catalyst performance of several classes of reactions, and highlights positive and challenging aspects of FeCrAl.

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Section: Syngasmentioning

confidence: 99%

FeCrAl as a Catalyst Support

et al. 2020

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“…An increase in catalytic activity by milling of the catalyst slurry was also reported by de Miguel and co-workers. They had also attributed this increase in activity to redispersion of active metals caused by mechanical milling …”

Section: Catalyst Characterization and Activity Testmentioning

confidence: 99%

Washcoating of Ni/MgAl₂O₄ Catalyst on FeCralloy Monoliths for Steam Reforming of Methane

2017

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In this study, the effect of different process variables on the washcoating of Ni/MgAl2O4 on FeCralloy foils and monoliths has been investigated and the washcoated monolith tested for the steam reforming of methane. Washcoating parameters, such as calcination temperature after washcoating, addition of binders, particle size of the slurry after ball milling, and rheological properties of the slurry, not only affected the loading and adherence of the washcoat, but also significantly affected the physicochemical properties of the catalyst. Slurry milled for 48 h (average particle size ∼2 μm) of pH 2–4 was found to be most stable and resulted in homogeneous washcoating. Increasing the calcination temperature after washcoating from 600 to 800 °C decreased the weight loss observed during adhesion test. However, the weight loss of the washcoat was still significant. Furthermore, typical procedures for sol coating of the metal monolith, before slurry washcoating, did not improve adhesion of Ni/MgAl2O4 washcoating on the FeCralloy metal. However, addition of binders (2 wt % poly(vinyl alcohol) and 4 wt % colloidal alumina) to the milled Ni/MgAl2O4 slurry significantly improved the adhesion of the washcoated slurry. Catalyst characterization of washcoat slurry catalyst revealed that milling of the slurry increased the catalytic surface area and active metal dispersion. Washcoated monolith subjected to activity test for steam reforming of methane reaction was found to be more active in comparison to a packed bed reactor.

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“…The method chosen for the slurry deposition depends strongly on the desired catalyst materials and also on the channel geometry. While slurry deposition methods show irregular coating thicknesses for certain geometries, − with an in situ growing technique uniform layers can be obtained for various kinds of geometries such as, for example, on needles. − An advantage of the slurry coating method is the easy deposition of the slurry and the possibility of using a commercial or previously developed catalyst. With a sol–gel method instead, the particle size and the composition of the catalyst can be controlled, and thin catalyst layers can be obtained. , With hybrid methods, it is possible to use a ready-made catalyst, and a sol, often similar in composition to the catalyst, is added to increase the adhesion of the layer.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Alumina-Based Microreactors for Application in Methyl Chloride Synthesis

Schmidt

Kumar

Zhang

et al. 2012

Ind. Eng. Chem. Res.

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Microreactor platelets were coated with an alumina catalyst for use in methyl chloride synthesis. The coating was extensively characterized regarding its uniformity, thickness, and stability by using SEM, confocal microscopy, and EDX. The influence of the platelet pretreatment on the coating stability was investigated with different stability tests. A straightforward method to obtain a stable and uniform coating was developed, and the coated platelets were used for the synthesis of methyl chloride. The performance of the microreactor was compared with a tubular fixed bed reactor. The results obtained with both reactors were comparable, but the microreactor allows a rapid catalytic screening with a low consumption of chemicals.

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Ni Catalyst Coating on Fecralloy^® Microchanneled Foils and Testing for Methane Steam Reforming

Cited by 14 publications

References 32 publications

FeCrAl as a Catalyst Support

FeCrAl as a Catalyst Support

Washcoating of Ni/MgAl₂O₄ Catalyst on FeCralloy Monoliths for Steam Reforming of Methane

Preparation and Characterization of Alumina-Based Microreactors for Application in Methyl Chloride Synthesis

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Ni Catalyst Coating on Fecralloy® Microchanneled Foils and Testing for Methane Steam Reforming

Cited by 14 publications

References 32 publications

FeCrAl as a Catalyst Support

FeCrAl as a Catalyst Support

Washcoating of Ni/MgAl2O4 Catalyst on FeCralloy Monoliths for Steam Reforming of Methane

Preparation and Characterization of Alumina-Based Microreactors for Application in Methyl Chloride Synthesis

Contact Info

Product

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About

Ni Catalyst Coating on Fecralloy^® Microchanneled Foils and Testing for Methane Steam Reforming

Washcoating of Ni/MgAl₂O₄ Catalyst on FeCralloy Monoliths for Steam Reforming of Methane