US 12,391,808 B1
Lignin extraction from lignocellulosic biomass using fruit-based natural solvent
Mohsin Raza, Al Ain (AE); Basim Abu-Jdayil, Al Ain (AE); and Arafat Husain, Al Ain (AE)
Assigned to United Arab Emirates University, Al Ain (AE)
Filed by United Arab Emirates University, Al Ain (AE)
Filed on Apr. 14, 2025, as Appl. No. 19/178,120.
Int. Cl. C08H 7/00 (2011.01)
CPC C08H 6/00 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method of extracting the lignin from a lignocellulosic biomass, the method comprising:
providing a lignocellulosic biomass;
providing a natural deep eutectic solvent (NADES) formed from Citric Acid (CA) and Fructose (Fr);
mixing the lignocellulosic biomass with the natural deep eutectic solvent;
obtaining a lignin-NADES suspension;
lyophilizing the lignin-NADES suspension;
rehydrating the lignin-NADES suspension;
drying the rehydrated lignin-NADES suspension;
repeating the steps of rehydrating the lignin-NADES suspension and drying the rehydrated lignin-NADES suspension;
thereby obtaining lignin particles.