| 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
Characterization of Physic nut (Jatropha curcas L.) shells
Abstract
The characterization of Physic nut shells was done using the wet chemical analysis of wood components. The obtained fractions were analyzed using IR, NMR, GPC, ICP and MALDI-TOF mass spectroscopy. TGA was used to determine the fixed carbon (+ash) and water content of the shells. The results of wet chemical analysis of wood components offered a clear procedure to isolate the main components in Physic nut shells ((a) under bar). The fractions obtained were: polar extract ((b) under bar), non-polar extract ((c) under bar), Acid Insoluble Lignin ((d) under bar), Holocellulose ((e) under bar), alpha-Cellulose T. The total Lignin content present in the shells equaled 48.84%. IR and NMR spectroscopy demonstrated that the non-polar extract is Lignin, which corresponds to the extractable Lignin (1.24%) in the Physic nut shells and the Acid Insoluble Lignin was 47.60%. Elemental analysis showed no Sulfur present in the investigated materials. Furthermore both H-1 and C-13 NMR of the non-polar extract showed the presence of aliphatic hydrocarbon chains. The a-Cellulose content (22.29%) and the Hemicelluloses content (23.84%) were in line with that of agricultural residues. The water content and the fixed carbon content (+ash [2.8%]) equal 5-6% and 35.6%, respectively. GPC showed that the polydispersity of the non-polar extract (3.6) lies between Alcell Lignin and Kraft Lignin. The polar extract contains a variety of metals, with especially a high amount of the alkali metals K and Na. The extraction with water is proposed to generate a fertilizer fraction and may be applied to reduce potential sintering issues during eventual combustion or gasification of the shells. (C) 2011 Elsevier Ltd. All rights reserved.