Method for preparing furan derivatives from biomass

Patent metadata

Field	Value
Publication number	US-9988362-B2
Application number	US-201615098905-A
Country	US
Kind code	B2
Filing date	Apr 14, 2016
Priority date	Apr 15, 2015
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

The present invention relates to a method for preparing for a furan derivative from biomass, comprising step (1) of preparing 5-hydroxymethylfurfural by reacting biomass and a solid acid catalyst in butanol; and step (2) of preparing a furan derivative by reacting the butanol solution of 5-hydroxymethylfurfural, obtained in step (1), with a hydrogenation catalyst.

First claim

The invention claimed is:

1. A method for preparing a furan derivative from biomass, comprising:
step (1) of preparing 5-hydroxymethylfurfural by reacting biomass and a solid acid catalyst in butanol; and
step (2) of preparing a furan derivative by reacting the butanol solution of 5-hydroxymethylfurfural, obtained in step (1), with a hydrogenation catalyst,
wherein the furan derivative is dimethylfuran or dihydroxymethylfuran,
wherein the method further comprises step (1-1), which is to remove the solid acid catalyst and unreacted biomass from the reaction mixture of step (1), before step (2), or
wherein the method further comprises step (2-1), which is to separate the furan derivative from the butanol, after step (2).

2. The method of claim 1 , wherein the biomass is fructose, glucose, or both fructose and glucose.

3. The method of claim 1 , wherein the solid acid catalyst is bronsted acid, Lewis acid, or a mixture thereof.

4. The method of claim 1 , wherein the solid acid catalyst is an ion exchange resin type.

5. The method of claim 1 , wherein the biomass and the butanol are used at a weight ratio of from 1:1 to 1:100.

6. The method of claim 1 , wherein the butanol is 1-butanol or isobutanol.

7. The method of claim 1 , wherein step (1) is performed at a temperature from 50° C. to 100° C. at ambient pressure.

8. The method of claim 1 , wherein step (1-1) is performed by filtration at a temperature from 10° C. to 50° C.

9. The method of claim 1 , wherein step (2-1) is performed by fractional distillation and crystallization.

10. A method for preparing 5-hydroxymethylfurfural comprising reacting biomass and a solid acid catalyst in butanol and removing the solid acid catalyst and unreacted biomass from a reaction mixture.

11. A method for preparing a furan derivative comprising reacting 5-hydroxymethylfurfural dissolved in butanol with a hydrogenation catalyst,
wherein the furan derivative is dimethylfuran or dihydroxymethylfuran, or
wherein the hydrogenation catalyst is a heterogeneous catalyst comprising one or more metal component(s) selected from the group consisting of Ru, Pt, Au, Pd, Cu, and Ni.

Assignees

• Korea Res Inst Chemical Tech

Inventors

• Hwang Dong Won
• Upare Pravin P
• Chang Jong San
• Hwang Young Kyu
• Lee U Hwang
• Hong Do Young

Classifications

• C07D307/36

  with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms · CPC title

• C07D307/42 Primary

  Singly bound oxygen atoms · CPC title

• C07D307/50

  Preparation from natural products · CPC title

• C07D307/48

  Furfural · CPC title