Palladium catalyst on anodized aluminum monoliths for the partial hydrogenation of vegetable oil

M, Jhon F. Sánchez; Boldrini, Diego Emmanuel; Tonetto, Gabriela Marta; Damiani, Daniel Eduardo

doi:10.1016/j.cej.2010.12.085

Cited by 24 publications

(24 citation statements)

References 27 publications

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“…Monolithic catalysts have been studied for multiphase catalytic applications, including hydrogenation reactions . Considering that many of these reactions are limited by mass‐transfer resistance phenomena, the excellent characteristics of monoliths associated with mass transport are of great relevance.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of the partial hydrogenation of vegetable oil in a monolithic stirrer reactor

2014

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Experimental and theoretical studies on the partial hydrogenation of vegetable oil in a monolithic stirrer reactor are reported. A complete mathematical model of the reactor was developed, including hydrogenation and isomerization kinetics, catalyst deactivation, external gas-liquid and liquid-solid as well as internal mass transfer. The experimental studies were carried out in a Pd/Al 2 O 3 /Al monolithic stirrer reactor, at a wide range of temperatures (353-373 K), pressures (414-552 kPa), and catalyst loadings (0.00084-0.00527 kg Pd,exp m 23 ). Based on this model, simulated data can be used to evaluate the catalyst (Pd/Al 2 O 3 /Al) and the hydrogenation process in consecutive catalytic tests under different operating conditions.

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Section: Introductionmentioning

confidence: 99%

“…In a previous work, palladium structured catalysts of anodized aluminum (Pd/Al 2 O 3 /Al) were evaluated as monolithic stirrers in the partial hydrogenation of sunflower oil . The monolithic catalysts showed high activity, which decreased after consecutive uses.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of the partial hydrogenation of vegetable oil in a monolithic stirrer reactor

2014

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“…Anodized aluminum monoliths were prepared using commercial laminated pure aluminum sheets as metallic substrate (Aluar A1050). The anodizing technology was used to generate an alumina layer on the surface of the 0.1 mm thick aluminum sheets in order to increase the roughness of the substrate . The operating conditions for the anodizing process were: electrolyte: oxalic acid (Aldrich, 98 %), electrolyte concentration: 1.6 mol/L, temperature: 40 °C, current density: 2 A · dm −2 , time: 40 min anodizing + 40 min pore opening.…”

Section: Methodsmentioning

confidence: 99%

NiNbO catalyst deposited on anodized aluminum monoliths for the oxidative dehydrogenation of ethane

et al. 2017

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Aluminum monoliths were used as substrates to prepare structured catalysts. A rough alumina layer was generated on the surface of the substrates by anodizing followed by hydrothermal treatments. The dip‐coating technique was used for coating the monolithic substrates. Aqueous suspensions with 0.15 and 0.30 g/g of Ni‐Nb mixed oxides catalysts were prepared for that purpose. Colloidal SiO2 was added as a binder in order to obtain homogeneous and adherent coatings. The samples were characterized by SEM, TPR, XPS, XRD, and N2 adsorption and tested in the oxidative dehydrogenation (ODH) of ethane to ethylene. The silica particles produced a drop in catalytic activity without affecting ethylene selectivity. The former effect was attributed mainly to a decrease in surface nickel concentration and an increase in reduction temperature. The presence of anodized aluminum substrates in the reaction environment did not have a significant influence on catalytic activity and product distribution, as observed for the coated monoliths used in this work, thus being a useful material to prepare structured catalysts for low‐temperature ethane ODH.

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“…However, it requires a higher reaction temperature and gives lower activity as compared to the other noble metals [13,14]. The toxicity, which results from leaching of Ni in the oil, needs to be addressed [15].…”

Section: Introductionmentioning

confidence: 98%

Catalytic upgrading of soybean oil methyl esters by partial hydrogenation using Pd catalysts

Thunyaratchatanon

Luengnaruemitchai

Chollacoop

et al. 2016

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Palladium catalyst on anodized aluminum monoliths for the partial hydrogenation of vegetable oil

Cited by 24 publications

References 27 publications

Mathematical modeling of the partial hydrogenation of vegetable oil in a monolithic stirrer reactor

Mathematical modeling of the partial hydrogenation of vegetable oil in a monolithic stirrer reactor

NiNbO catalyst deposited on anodized aluminum monoliths for the oxidative dehydrogenation of ethane

Catalytic upgrading of soybean oil methyl esters by partial hydrogenation using Pd catalysts

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