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Sugar hydrogenation in continuous reactors: from catalyst particles towards structured catalysts
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2016 (English)In: Chemical Engineering and Processing, ISSN 0255-2701, E-ISSN 1873-3204, Vol. 109, 1-10 p.Article in journal (Refereed) Published
Abstract [en]

The density, viscosity and hydrogen solubility of selected sugars (l-arabinose, d-galactose, d-maltose and l-rhamnose) were determined at different temperatures (generally 60, 90 and 130 °C). The role of internal diffusion resistance in porous catalyst layers for sugar hydrogenation was confirmed by numerical simulations based on kinetic data and physical properties. The simulations suggested the use of small catalyst particles or structured catalysts in continuous hydrogenation of the sugars to sugar alcohols. Continuous hydrogenation of l-arabinose was carried out in a laboratory-scale fixed bed reactor with ruthenium catalysts on three different supports (active carbon clothes, carbon nanotubes on sponge-like metallic structures, conventional active carbon catalyst particles). It was proved that continuous hydrogenation is a feasible alternative to batch technology for sugar hydrogenation over conventional catalyst particles and structured catalysts: l-arabinose was converted to arabitol with a very high selectivity.

Place, publisher, year, edition, pages
2016. Vol. 109, 1-10 p.
Keyword [en]
Arabinose, Maltose, Galactose, Rhamnose, Hydrogenation, Fixed bed, Active carbon clothes, Carbon nanotubes, Ruthenium catalyst, Physical properties
National Category
Chemical Sciences
URN: urn:nbn:se:umu:diva-53103DOI: 10.1016/j.cep.2016.07.007OAI: diva2:509699
Available from: 2012-03-13 Created: 2012-03-13 Last updated: 2016-09-16Bibliographically approved

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Mikkola, Jyri-Pekka
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Department of Chemistry
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