2026-04-27T08:18:48Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/730612025-01-07T20:01:19Zcom_10324_1173com_10324_931com_10324_894col_10324_1371

00925njm 22002777a 4500 dc Demirkaya, Emre author Cocero Alonso, María José author Cantero Sposetti, Danilo Alberto author 2024 Black liquor (BL) has valuable lignin and its derived compounds, which can be used for many purposes, such as polyol synthesis. Herein, we reveal polyols presence in depolymerized black liquor (DBL) and propose a fast and scalable approach to increase the yield of this fraction. Hydrothermal treatment (HTL) of black liquor (385°C, 26 MPa) was performed in a custom designed supercritical water (SCW) pilot-plant with rapid reaction times of around 0.4 s. Ash-free, total ethyl acetate extracted bio-oil yield was found 77% w/w. In addition to the contribution of the detailed fractionation methods, this study highlights continuous operation (>1 hour), and short reaction times (∼0.4 s) of raw black liquor in SCW to produce biopolyols and aromatic bio-oil. The Journal of Supercritical Fluids, 2024, vol. 211, 106296 0896-8446 https://uvadoc.uva.es/handle/10324/73061 10.1016/j.supflu.2024.106296 106296 The Journal of Supercritical Fluids 211 Supercritical water depolymerization of black liquor, refining and comprehensive analysis of products including biopolyols