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US 12,503,410 B2Granted
Lignocellulose refinery
AssigneeKatholieke Universiteit Leuven
InventorsBert Sels, Yuhe Liao
Life of this patent
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Abstract
In general, present invention concerns an integrated lignocellulose-to-chemicals biorefinery, enabling production of renewable n-propylbenzene, phenolic oligomers, and carbohydrate pulp from lignocellulosic biomass. And it concerns an integrated biorefinery, enabling production of renewable n-propylbenzene, phenolic oligomers, and carbohydrate pulp from lignocellulosic biomass.
Claims24
A method comprising the steps of:
- a) providing a mixture of compounds of formula (I):
- wherein:
- each occurrence of R1 and R2 is independently selected to be —O—CH3 or —H;
- each occurrence of R3 is independently selected to be —H, or -methyl, or -ethyl, or -propyl, or -propylene, or -1-alkoxypropyl, or -3-hydroxypropyl;
- b) preparing a reaction mixture by contacting said mixture of compounds of step a) in gas phase, with a reaction mixture containing a metal-based catalyst, under a hydrogen containing gas atmosphere;
- wherein step b) is carried out at a temperature of at least 265° C. and a partial hydrogen pressure of at least 0.2 bar;
- c) obtaining from step b) products comprising a mixture of compounds of formula (Ia), as well as methane or methanol or both;
- wherein:
- R1 is independently selected to be —CH3 or —H;
- R2 is independently selected to be -propyl or -ethyl;
- q represents the position on the aromatic ring, with q being any one of the numbers 2-6.
8 more elements
Dependencies are inferred from the claim text.