Dynamics of hydrogen loss and structural changes in pyrolyzing biomass utilizing neutron imaging
作者： Frederik Ossler , Charles E.A. Finney , Jeffrey M. Warren , Jean-Christophe Bilheux , Yuxuan Zhang
DOI: 10.1016/J.CARBON.2020.11.060
关键词: Analytical chemistry 、 Biomass 、 Neutron 、 Neutron imaging 、 Hydrogen 、 Thermogravimetric analysis 、 Materials science 、 Carbonization 、 Pyrolysis 、 Carbon
摘要: Abstract We present results from neutron-imaging studies of slow, vacuum pyrolysis beech, poplar and conifer wood, pelletized biomass room temperature up to 1000 °C. A detailed quantitative method extract 2D (in situ neutron radiography, NR) 3D (ex computed tomography, NCT) information on structural transformation elemental hydrogen content has been developed. NCT X-ray tomography (XCT) experiments a carbonized beech twig permitted comparison the spatial distribution hydrogen, better sensed by NCT, carbon, oxygen, heavier elements, XCT. have developed methodology directly compare structure hydrogen-loss dynamics measured using imaging with thermogravimetric analysis differential thermogravimetry thus can understand correlations between carbon release dynamics. While for carbonization biomass, we expect that it could be applied in dynamic monitoring other hydrogenous reacting systems appropriate temporal scales.
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