Sugar hydrogenation over a Ru/C catalyst

Herrera, Víctor A. Sifontes; Oladele, Oluwamuyiwa; Kordás, Krisztián; Eränen, Kari; Mikkola, Jyri‐Pekka; Murzin, Dmitry Yu.; Salmi, Tapio

doi:10.1002/jctb.2565

Cited by 71 publications

(46 citation statements)

References 27 publications

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“…Due to the combined occurrence of arabinose and galactose in processing arabinogalactan, the behavior of the sugar mixture has attracted special attention. In contrast to the widely applied hydrogenation of glucose, kinetic data for the hydrogenation of arabinose and galactose is scarce . Some studies on the continuous hydrogenation of arabinose in a bench‐scale trickle‐bed reactor have also been performed, together with reactor modeling , .…”

Section: Introductionmentioning

confidence: 99%

Continuous Hydrogenation of L‐Arabinose and D‐Galactose in a Mini Packed‐Bed Reactor

et al. 2017

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Dedicated to Professor Rüdiger Lange on the occasion of his 65th birthdayThe continuous hydrogenation of a mixture of L-arabinose and D-galactose over a Ru/C catalyst was investigated in a miniaturized packed-bed reactor. The reaction is one important step of the transformation of the naturally occurring hemicellulose arabinogalactan into valuable sugar alcohols. Process intensification was accomplished by reducing the reactor dimensions to a few millimeters; thus leading to better mass and heat transfer performance. The effects of temperature, pressure, and liquid flow rate on the yield and by-product formation are discussed. Based on a kinetic model derived from batch experiments, a model of the continuous reactor was developed and used for scale-up purposes.

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Section: Introductionmentioning

confidence: 99%

Continuous Hydrogenation of L‐Arabinose and D‐Galactose in a Mini Packed‐Bed Reactor

et al. 2017

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“…Ruthenium‐based catalyst was more active than nickel‐based catalyst, and this leads to the higher catalyst selectivity. The high selectivity (>95–100%) was found on carbon‐supported ruthenium catalysts in the hydrogenation of D‐maltose, D‐galactose, L‐rhamnose, and L‐arabinose . The ruthenium‐based catalyst showed higher catalytic activity than nickel‐based catalyst in hydrogenation of glucose .…”

Section: Lactitol Productionmentioning

confidence: 98%

Hydrogenation of lactose for the production of lactitol

Cheng

Martínez‐Monteagudo

2018

Asia-Pacific J Chem Eng

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Because of its chemical structure, low‐cost production, and large‐scale production, lactose is a promising source for the production of sugar alcohols. Lactitol is the primary sugar alcohol derived from lactose through a set of chemical reactions known as catalytic hydrogenation. Reaction products are strongly dependent on the reaction conditions and catalyst type. The purpose of this review is to examine the production of lactitol through hydrogenation of lactose. Technological aspects of hydrogenation of lactose are examined, including primary and secondary reaction products, type of catalyst used, catalyst deactivation and regeneration, kinetic models, selectivity, and reaction mechanisms. Research in this area is not as advanced as enzymatic catalysis, and there are opportunities for further studies in the fields of reaction optimization and detailed characterization of products.

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“…This fact allows establishing that this variable has a first-order behavior with respect to hydrogen. However, sugar hydrogenation over ruthenium is often described by zero-order kinetics at high hydrogen pressures [30].…”

Section: Hydrogen Partial Pressurementioning

confidence: 99%

Modeling of Ethylene Glycol Production from Glucose in a Semi‐Continuous Reactor

et al. 2020

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A numerical study describes the catalytic conversion of glucose into ethylene glycol (EG) in a semi-batch reactor. This analysis couples a set of power law models (homogeneous reactions) and Langmuir-Hinshelwood-Hougen-Watson (LHHW) equations (hydrogenations). For this purpose, the kinetic parameters of the LHHW expressions are estimated for the reaction conditions. Then, the kinetic model evaluates the influence of the H 2 pressure and the catalyst concentrations on the selectivity. The results indicate that the EG yield is increased by setting the temperature and the H 2 pressure. In this manner, the process reduces the hexitols and methane production and increases the EG yield. The originality of the work is based on the influence of the H 2 pressure and the catalyst concentrations in the model.

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Sugar hydrogenation over a Ru/C catalyst

Cited by 71 publications

References 27 publications

Continuous Hydrogenation of L‐Arabinose and D‐Galactose in a Mini Packed‐Bed Reactor

Continuous Hydrogenation of L‐Arabinose and D‐Galactose in a Mini Packed‐Bed Reactor

Hydrogenation of lactose for the production of lactitol

Modeling of Ethylene Glycol Production from Glucose in a Semi‐Continuous Reactor

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