(216a) Characterizing Lignin from a Low Temperature Hydrotropic Process for Valorization
- Conference: AIChE Annual Meeting
- Year: 2018
- Proceeding: 2018 AIChE Annual Meeting
- Group: Topical Conference: Innovations of Green Process Engineering for Sustainable Energy and Environment
- Time: Monday, October 29, 2018 - 3:30pm-3:45pm
Recently we discovered that an aromatic acid, p-Toluenesulfonic acid (p-TsOH), as a hydrotrope can achieve near complete dissolution of wood lignin at 80C for 20 min. Here we present lignin properties from low severity fractionation using p-TsOH characterized by NMR, GPC, DSC, et al. We found that low severity can substantially preserve beta-O-4 linkages which can facilitate valozriation. p-TsOH as a solid catalyst can be easily recovered.