Abstract
Abstract—The thermal stability of methanol, ethanol, 2-propanol, and acetic acid, which are most suitable for depolymerization of technical lignins into low-molecular aromatic compounds, was studied under supercritical conditions. 2-Propanol was found to be most stable at 450°С. Acetic acid almost completely decomposes within 4 h, while the addition of water considerably increases its thermal stability. The chemical composition of the gaseous and liquid products of the thermal decomposition of the solvents was studied by gas chromatography–mass spectrometry.
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