Influence of operating variables on the aqueous-phase reforming of glycerol over a Ni/Al coprecipitated catalyst

García, L.; Valiente, A.; Oliva, M.; Ruíz, J.; Arauzo, J.

doi:10.1016/j.ijhydene.2018.09.119

Cited by 28 publications

(34 citation statements)

References 57 publications

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“…Then, ethanol and methanol can be generated by dehydration/hydrogenation and dehydrogenation/de-carbonylation of ethylene glycol, respectively. Ethanol can also produce acetic acid [7,23]. According to the results obtained, it is possible that route 2 was favoured with an increase of reaction time and could occur after 6 h of reaction, corroborated with the results of glycerol conversion and carbon yield to gases and liquids.…”

Section: Catalyst Stability and Reusability Studysupporting

confidence: 68%

Study of Ni/Al-Fe Catalyst Stability in the Aqueous Phase Hydrogenolysis of Glycerol

et al. 2020

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The present work studied the stability and reusability of Ni/Al-Fe catalyst in the aqueous phase hydrogenolysis of glycerol without external hydrogen addition. The catalyst based on 28 molar % of Ni with 3/1 molar ratio of Al/Fe was prepared through co-precipitation. This catalyst presented the best performance in our last study which compares several Ni/Al-Fe catalysts with different molar ratios of Al/Fe. To see the influence of the pressurized water on the physicochemical characteristics of Ni/Al-Fe catalyst, a test of up to 9 h has been carried out. Fresh and used catalysts were characterized by various techniques: X-ray Diffraction (XRD), N2-physisorption, field emission scanning electron microscopy (FESEM) and STEM. Glycerol conversion and carbon yield to gases and liquids did not vary significantly when compared at 3 h and 9 h. Furthermore, the morphology of the catalyst remains stable after continuous recycling under severe hydrothermal conditions. The nickel rich phase of the catalyst, which was determined by XRD and scanning transmission electron microscopy (STEM) techniques, showed a stable size after 9 h under reaction.

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Section: Catalyst Stability and Reusability Studysupporting

confidence: 68%

Study of Ni/Al-Fe Catalyst Stability in the Aqueous Phase Hydrogenolysis of Glycerol

et al. 2020

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“…[85] Co Compared to steam reforming, one of the main advantages of APR is that this process does not require vaporization of the feedstock, reducing the energy cost. Moreover, there is low CO production and few side reactions take place [88] if the aqueous phase reforming of glycerol is carried out (see Equation 2):…”

Section: Nice X Al Metal Oxidesmentioning

confidence: 99%

Recent Advances in Glycerol Catalytic Valorization: A Review

et al. 2020

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Once a biorefinery is ready to operate, the main processed materials need to be completely evaluated in terms of many different factors, including disposal regulations, technological limitations of installation, the market, and other societal considerations. In biorefinery, glycerol is the main by-product, representing around 10% of biodiesel production. In the last few decades, the large-scale production of biodiesel and glycerol has promoted research on a wide range of strategies in an attempt to valorize this by-product, with its transformation into added value chemicals being the strategy that exhibits the most promising route. Among them, C3 compounds obtained from routes such as hydrogenation, oxidation, esterification, etc. represent an alternative to petroleum-based routes for chemicals such as acrolein, propanediols, or carboxylic acids of interest for the polymer industry. Another widely studied and developed strategy includes processes such as reforming or pyrolysis for energy, clean fuels, and materials such as activated carbon. This review covers recent advances in catalysts used in the most promising strategies considering both chemicals and energy or fuel obtention. Due to the large variety in biorefinery industries, several potential emergent valorization routes are briefly summarized.

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“…Los experimentos se llevaron a cabo en una instalación de laboratorio continua a pequeña escala diseñada y desarrollada por PID (Process Integral Development Eng & Tech, Spain), descrita en trabajos anteriores [4,6,7]. El estudio de la actividad catalítica tuvo lugar en un reactor de lecho fijo durante 3 h a 227 ºC y 34 bar.…”

Section: Sistema Experimentalunclassified

“…El 1,2-propanodiol es un importante producto químico, utilizado principalmente en alimentos, productos famacéuticos, detergentes líquidos, entre otros usos [3]. El etilenglicol se utiliza como anticongelante y materia prima para la fabricación de poliéster [4]. El acetol tiene sus usos en la industria textil, alimentaria y cosmética.…”

Section: Introductionunclassified

Obtención de productos de valor añadido mediante la hidrogenólisis de glicerina sin aporte externo de hidrógeno

Roka¹,

Nieto²,

Palacín³

et al. 2020

Jorn. jovenes investig. I3A

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Influence of operating variables on the aqueous-phase reforming of glycerol over a Ni/Al coprecipitated catalyst

Cited by 28 publications

References 57 publications

Study of Ni/Al-Fe Catalyst Stability in the Aqueous Phase Hydrogenolysis of Glycerol

Study of Ni/Al-Fe Catalyst Stability in the Aqueous Phase Hydrogenolysis of Glycerol

Recent Advances in Glycerol Catalytic Valorization: A Review

Obtención de productos de valor añadido mediante la hidrogenólisis de glicerina sin aporte externo de hidrógeno

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