TY - JOUR
T1 - Molecular footprint of co-solvents in hydrothermal liquefaction (HTL) of Fallopia Japonica
AU - Arturi, Katarzyna Ratajczyk
AU - Kucheryavskiy, Sergey V.
AU - Nielsen, Rudi Pankratz
AU - Maschietti, Marco
AU - Vogel, Frederic
AU - Bjelic, Sasa
AU - Søgaard, Erik Gydesen
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The influence of co-solvents on hydrothermal liquefaction (HTL) of Fallopia Japonica was studied as a function of temperature. Combination of low and high-resolution mass spectrometry with multi-layered data mining strategy resulted in a comprehensive characterization of the reaction products, mostly water-soluble organics (WSO) with a broad spectrum of chemical functionalities. The non-targeted analysis revealed the presence of a core composition in the samples independent of the process conditions and consisting of hydroxycarboxylic acids, imids, lactones, lactams, phenolics, various short-chain oxygenated aliphatics, and cyclohexane derivatives. Changes in process conditions did not affect those species showing that a part of the HTL product is not susceptible to process tailoring by addition of co-solvents. The findings indicated that the effect of tetralin is a combination of solubilization and scavenging resulting in an increased abundance of monomeric aromatics. For acetone, the results pointed to the promotion of retro-aldol splitting yielding low molecular weight oxygenates.
AB - The influence of co-solvents on hydrothermal liquefaction (HTL) of Fallopia Japonica was studied as a function of temperature. Combination of low and high-resolution mass spectrometry with multi-layered data mining strategy resulted in a comprehensive characterization of the reaction products, mostly water-soluble organics (WSO) with a broad spectrum of chemical functionalities. The non-targeted analysis revealed the presence of a core composition in the samples independent of the process conditions and consisting of hydroxycarboxylic acids, imids, lactones, lactams, phenolics, various short-chain oxygenated aliphatics, and cyclohexane derivatives. Changes in process conditions did not affect those species showing that a part of the HTL product is not susceptible to process tailoring by addition of co-solvents. The findings indicated that the effect of tetralin is a combination of solubilization and scavenging resulting in an increased abundance of monomeric aromatics. For acetone, the results pointed to the promotion of retro-aldol splitting yielding low molecular weight oxygenates.
KW - Acetone
KW - Fallopia Japonica
KW - Hydrothermal liquefaction
KW - Kendrick mass defect
KW - Multivariate data analysis
KW - Tetralin
UR - http://www.scopus.com/inward/record.url?scp=85052872315&partnerID=8YFLogxK
U2 - 10.1016/j.supflu.2018.08.010
DO - 10.1016/j.supflu.2018.08.010
M3 - Journal article
SN - 0896-8446
VL - 143
SP - 211
EP - 222
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
ER -