2018, №3

сс. 109-113

Perspective Solvents for Lignin Depolimerization: Stability under Supercritical Conditions

2018, №3

сс. 109-113

Цитировать

A.D. Ivakhnov, N.V. Ul’yanovskii, S.A. Pokryshkin, I.S. Shavrina, I.I. Pikovskoi, D.S. Kosyakov

Key words: monohydric alcohols, acetic acid, lignin, stability, supercritical state

Thermal stability under supercritical conditions of methanol, ethanol, 2-propanol and
acetic acid, most suitable as solvents in depolymerization of technical lignins to lowmolecular
aromatic compounds, was studied. Among them at 450 °C 2-propanol is the
most stable. Acetic acid is almost completely decomposed within 4 h, while the addition
of water significantly increases its thermal stability. Chemical composition of gaseous
and liquid products of thermal decomposition of solvents was studied using gas
chromatography-mass spectrometry.

doi:10.1134/S1990793119070108