RT info:eu-repo/semantics/article
T1 Supercritical water depolymerization of black liquor, refining and comprehensive analysis of products including biopolyols
A1 Demirkaya, Emre
A1 Cocero Alonso, María José
A1 Cantero Sposetti, Danilo Alberto
K1 Hydrothermal
K1 Biorefinery
K1 Fractionation
K1 Polyol
K1 SAF
AB 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.
PB Elsevier
SN 0896-8446
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/73061
UL https://uvadoc.uva.es/handle/10324/73061
LA eng
NO The Journal of Supercritical Fluids, 2024, vol. 211, 106296
NO Producción Científica
DS UVaDOC
RD 04-abr-2025