Production of reactive lignin mix through catalytic solvolysis of organosolv lignin
Research output: Contribution to conference › Paper › Scientific
This research presents a novel use of biphasic 2-methyltetrahydrofuran (2-MTHF) / water mixture as a reaction medium in the presence of sodium for-mate as an in-situ base catalyst for producing a re-active lignin mix with a yield of 73.2 wt % from beech organosolv lignin. Treating the feed lignin at a temperature of 310 °C for one hour produced a re-active lignin mix, rich in monoaromatic phenolic units with enhanced reactivity (e.g. 3-methoxycate-chol).
The yield of monoaromatic phenolic compounds in the obtained reactive lignin mixture was 22 wt %. The gel-permeation chromatography (GPC) analy-sis revealed a molar mass dispersity (Đ) of 3.7 with weight-average molar mass (Mw) of 688 g/mol, which is about one fourth of the molar mass of the initial organosolv lignin (Mw = 2423 g/mol, Đ = 7.2). The reactive lignin mix could be used as a re-placement for phenol in a PF resin providing lignin a higher value than just fuel.
|Publication status||Published - 11 Sep 2019|
|MoE publication type||Not Eligible|
|Event||International Symposium on Wood, Fibre and Pulping Chemistry - The University of Tokyo, Tokyo, Japan|
Duration: 9 Sep 2019 → 11 Sep 2019
Conference number: 20
|Conference||International Symposium on Wood, Fibre and Pulping Chemistry|
|Period||09/09/2019 → 11/09/2019|