US 12,129,346 B2
Fractionation and depolymerisation of lignocellulosic material
Bert Sels, Westerlo (BE); Tom Renders, Leuven (BE); Elias Cooreman, Bouwel (BE); and Sander Van Den Bosch, Boortmeerbeek (BE)
Appl. No. 17/255,163
Filed by KATHOLIEKE UNIVERSITEIT LEUVEN, Leuven (BE)
PCT Filed Jun. 25, 2019, PCT No. PCT/EP2019/066887
§ 371(c)(1), (2) Date Dec. 22, 2020,
PCT Pub. No. WO2020/002361, PCT Pub. Date Jan. 2, 2020.
Claims priority of provisional application 62/689,655, filed on Jun. 25, 2018.
Prior Publication US 2021/0269616 A1, Sep. 2, 2021
Int. Cl. C08J 11/16 (2006.01); B01J 19/00 (2006.01); C07C 27/06 (2006.01)
CPC C08J 11/16 (2013.01) [B01J 19/0013 (2013.01); C07C 27/06 (2013.01); B01J 2219/00051 (2013.01); B01J 2219/00162 (2013.01); C08J 2397/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process for producing polyols and phenolic compounds, the process comprising:
combining lignocellulose, a lignocellulosic material, or a feedstock comprising lignocellulose, with (a) a liquid medium comprising water and an alcohol not fully miscible with water below 100° C., (b) an active catalyst consisting of ruthenium on carbon, and (c) hydrogen gas at a partial pressure of 10 bar or higher at room temperature to form a reaction mixture; and
subjecting the reaction mixture to a temperature of at least 150° C. to form a product, wherein the product comprises:
a mixture of sugar-derived polyols and oligosaccharides; and
a mixture of phenolic compounds selected from monophenolic compounds, diphenolic compounds, and polyphenolic compounds, wherein the mixture of phenolic compounds comprises monophenolic compounds and at least 60% by mass of the monophenolic compounds have the general formula

OG Complex Work Unit Chemistry
 where R1 is —H, —OH, or —OCH3.