| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Heeres, Hero Jan
University of Groningen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Torque measurement as a tool to monitor the breakdown of cassava starch gels, by the effect of Fenton's initiator for graft copolymerizationcitations
- 2022The Effect of Molecular Weight on the (Re)-Processability and Material Properties of Bio-Based, Thermoreversibly Cross-Linked Polyesterscitations
- 2019Bio-Based Chemicalscitations
- 2019Insight into the hydrogenation of pure and crude HMF to furan diols using Ru/C as catalystcitations
- 2015Structure-Mechanical and Thermal Properties Relationship of Novel gamma-Valerolactone-Based Polyurethanescitations
- 2015Catalytic upgrading of sugar fractions from pyrolysis oils in supercritical mono-alcohols over Cu doped porous metal oxidecitations
- 2013Catalyst studies on the ring opening of tetrahydrofuran-dimethanol to 1,2,6-hexanetriolcitations
- 2012Characterization of Physic nut (Jatropha curcas L.) shellscitations
- 2012In situ catalytic pyrolysis of lignocellulose using alkali-modified amorphous silica aluminacitations
- 2010Extraction of Jatropha curcas proteins and application in polyketone-based wood adhesivescitations
Places of action
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article
Catalytic upgrading of sugar fractions from pyrolysis oils in supercritical mono-alcohols over Cu doped porous metal oxide
Abstract
In this work, we report on the catalytic valorization of sugar fractions, obtained by aqueous phase extraction of fast pyrolysis oils, in supercritical methanol (scMeOH) and ethanol (scEtOH) over a copper doped porous metal oxide (Cu-PMO). The product mixtures obtained are, in principle, suitable for direct co-feeding in methanol to hydrocarbon (MTH) processes, as fuel additives, or can be further fractionated or transformed to useful bulk chemicals. The main components of the obtained product mixtures in scMeOH are aliphatic mono-alcohols (51%), diols (22%), esters (15%), ethers (9%) and furanics (3%). Similar product suite is obtained by converting concentrated, 15 wt% sugar fractions with added 50 bar H-2 in scEtOH. The extensive depolymerization of the sugar polymers and oligomers contained in the sugar fraction is verified by gel permeation chromatography (GPC) and product stability upon catalytic treatment is confirmed by thermogravimetric analysis (TGA). In addition, model compound studies, using levoglucosan and D-cellobiose allow for more specific insight into the chemical pathways taking place during these transformations. The catalyst is characterized by various techniques, including XRD, NH3-TPD, BET, and TEM. The stability of the catalyst using 5 wt% sugar fraction in scMeOH is also evaluated. (C) 2014 Elsevier B.V. All rights reserved.