Uncovering supercritical CO2 wood dewatering via interleaved 1H-imaging and 13C-spectroscopy with real-time reconstruction

R A Franich; Roger Meder; M Falge; J Fuchs; V C Behr

doi:10.1016/j.supflu.2018.10.006

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Uncovering supercritical CO2 wood dewatering via interleaved 1H-imaging and 13C-spectroscopy with real-time reconstruction

Journal article

Peer reviewed

Uncovering supercritical CO2 wood dewatering via interleaved 1H-imaging and 13C-spectroscopy with real-time reconstruction

R A Franich, Roger Meder, M Falge, J Fuchs and V C Behr

Journal of Supercritical Fluids, Vol.144, pp.56-62

2019

DOI: https://doi.org/10.1016/j.supflu.2018.10.006

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Abstract

dewatering

magnetic resonance imaging

magnetic resonance spectroscopy

real-time video 1H images and 13C spectra

supercritical CO2

wood

Real-time observation of green radiata pine sapwood specimens undergoing dewatering using a cyclical process in which supercritical CO2 changes to gas phase has been achieved using rapid interleaved 1H magnetic resonance imaging (MRI) and 13C nuclear magnetic resonance (NMR) spectroscopy. The 1H and 13C data were produced as videos showing in real-time changes in cell water distribution within the wood specimen together with the water flow from the specimen undergoing dewatering, and changes in CO2 13C NMR spectrum with pressure change and CO2 phase change. The results presented here enable refinement of understanding of the green wood dewatering mechanism driven by phase change of supercritical CO2 to gas, and provide insights into the physical and chemical interaction of supercritical CO2 and wood cell water.

Details

Title: Uncovering supercritical CO2 wood dewatering via interleaved 1H-imaging and 13C-spectroscopy with real-time reconstruction
Authors: R A Franich (Author) - Scion, New Zealand
Roger Meder (Author) - University of the Sunshine Coast - Faculty of Arts, Business and Law
M Falge (Author) - University of Wurzburg, Germany
J Fuchs (Author) - University of Wurzburg, Germany
V C Behr (Author) - University of Wurzburg, Germany
Publication details: Journal of Supercritical Fluids, Vol.144, pp.56-62
Publisher: Elsevier BV
Date published: 2019
DOI: 10.1016/j.supflu.2018.10.006
ISSN: 0896-8446; 0896-8446
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre
Language: English
Record Identifier: 99451501502621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Physical; Engineering, Chemical