Tan, Yee Tong and Chua, Adeline Seak May and Ngoh, Gek Cheng (2020) Evaluation on the properties of deep eutectic solvent-extracted lignin for potential aromatic bio-products conversion. Industrial Crops and Products, 154. ISSN 0926-6690, DOI https://doi.org/10.1016/j.indcrop.2020.112729.
Full text not available from this repository.Abstract
Lignin represents a major aromatic resource in future bio-economy due to its natural abundancy. However, it is mostly produced as paper pulping by-product with heavily modified structure. The application of deep eutectic solvent (DES) has introduced an alternative lignin-first extraction method. In this work, the structural and thermal properties of DES-extracted lignin (DEEL) from oil palm empty fruit bunch using choline chloride:lactic acid (CC-LA) and choline chloride:formic acid (CC-FA) were evaluated to examine the potential of DEEL for further valorisation. CC-FA was more destructive towards the lignin's structure, leading to a highly condensed DEEL. In contrast, CC-LA managed to preserve more beta-O-4' linkages, the usual chemical modification site. Thus, it might be more suitable for smaller chemicals production through depolymerisation process. The pyrolysis products were mainly phenolic compounds (> 50 %), indicating the prospect of DEEL for phenolic-based chemicals production. The collective results demonstrate that DEEL can potentially be employed as a precursor for fuel and aromatic chemicals production.
| Item Type: | Article |
|---|---|
| Funders: | Fundamental Research Grant Scheme (FRGS) by Ministry of Education Malaysia [FP128-2019A] |
| Uncontrolled Keywords: | Deep eutectic solvents; Lignin extraction; Lignin valorisation; Oil palm empty fruit bunch; Aromatic chemicals; Phenolic compounds |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 06 Oct 2023 02:25 |
| Last Modified: | 06 Oct 2023 02:25 |
| URI: | http://eprints.um.edu.my/id/eprint/36334 |
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