The amount of CaCO3 in sediments and/or sedimentary rocks is usually measured by calcimetry while the nature of the carbonates is determined by X-ray diffraction. Recently, a carbonate recognition method based on the results of Rock-Eval pyrolysis was proposed in 2014 by Pillot et al. [1]. Rock-Eval pyrolysis is also widely used for the characteriz...
In sulfolane (tetramethylene sulfone), which is a good solvent for the primary product, levoglucosan, cellulose is pyrolyzed completely into soluble products without forming any char. Residues during pyrolysis in sulfolane at 200, 240 and 330 °C were obtained always as colorless non-carbonized substances. From the change in the crystallinity and cr...
Pyrolysis behavior of wood at gasification temperature (800 °C) was investigated focusing on the behaviors of the wood constituent polymers [cellulose, hemicellulose (glucomannan and xylan) and lignin (milled wood lignin)]. Tar compositions (iso-propanol-soluble and water-soluble tar fractions), which were characterized with GPC, GC–MS, GC-FID (oxi...
Thermal degradation of levoglucosan (1, 6-anhydro-β-d-glucopyranose) was shown to be substantially suppressed in the presence of some aromatic compounds under the conditions of N₂/240–340 °C/15 min. This stabilization effect is also discussed with CH–π interaction between levoglucosan and π-electrons in the benzene ring.
Thermal degradation of levoglucosan (1, 6-anhydro-β-d-glucopyranose) was shown to be substantially suppressed in the presence of some aromatic compounds under the conditions of N₂/240–340 °C/15 min. This stabilization effect is also discussed with CH–π interaction between levoglucosan and π-electrons in the benzene ring.
In sulfolane (tetramethylene sulfone), which is a good solvent for the primary product, levoglucosan, cellulose is pyrolyzed completely into soluble products without forming any char. Residues during pyrolysis in sulfolane at 200, 240 and 330 °C were obtained always as colorless non-carbonized substances. From the change in the crystallinity and cr...
Pyrolysis behavior of wood at gasification temperature (800 °C) was investigated focusing on the behaviors of the wood constituent polymers [cellulose, hemicellulose (glucomannan and xylan) and lignin (milled wood lignin)]. Tar compositions (iso-propanol-soluble and water-soluble tar fractions), which were characterized with GPC, GC–MS, GC-FID (oxi...
Thermal degradation of levoglucosan (1, 6-anhydro-β-d-glucopyranose) was shown to be substantially suppressed in the presence of some aromatic compounds under the conditions of N₂/240–340 °C/15 min. This stabilization effect is also discussed with CH–π interaction between levoglucosan and π-electrons in the benzene ring.
Thermal degradation of levoglucosan (1, 6-anhydro-β-d-glucopyranose) was shown to be substantially suppressed in the presence of some aromatic compounds under the conditions of N₂/240–340 °C/15 min. This stabilization effect is also discussed with CH–π interaction between levoglucosan and π-electrons in the benzene ring.
Pyrolysis behavior of wood at gasification temperature (800 °C) was investigated focusing on the behaviors of the wood constituent polymers [cellulose, hemicellulose (glucomannan and xylan) and lignin (milled wood lignin)]. Tar compositions (iso-propanol-soluble and water-soluble tar fractions), which were characterized with GPC, GC–MS, GC-FID (oxi...
