Single step process for conversion of furfural to tetrahydrofuran
US-9527826-B2 · Dec 27, 2016 · US
Process for producing furan from furfural from biomass
US2016159762A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016159762-A1 |
| Application number | US-201414906059-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 30, 2014 |
| Priority date | Aug 9, 2013 |
| Publication date | Jun 9, 2016 |
| Grant date | — |
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Abstract
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A process is described for producing furan from furfural from biomass, wherein furfural in an aqueous mass or stream from the liquefaction of biomass or a biomass fraction including one or more furfural precursors is extracted into an organic solvent which is readily separable from furan by simple distillation at atmospheric pressure, furfural is catalytically decarbonylated to furan in the organic solvent and furan is separated from the organic solvent by simple distillation. The furan from the distillation step may be hydrogenated to provide tetrahydrofuran.
First claim
Opening claim text (preview).
What is claimed is: 1 . A process for producing furan from furfural from biomass, wherein furfural in an aqueous mass or stream from the liquefaction of biomass or a biomass fraction including one or more furfural precursors is extracted into an organic solvent which is readily separable from furan by simple distillation at atmospheric pressure, furfural is catalytically decarbonylated to furan in the organic solvent and furan is separated from the organic solvent by simple distillation. 2 . A process according to claim 1 , further comprising the step of hydrogenating furan from the simple distillation to produce tetrahydrofuran. 3 . A process according to claim 1 or claim 2 , wherein toluene is used to extract furfural from the aqueous mass or stream. 4 . A process according to claim 1 or claim 2 , wherein furfural is decarbonylated to furan in the presence of a supported palladium catalyst. 5 . A process according to claim 4 , wherein the support is carbon or alumina. 6 . A process according to claim 2 , wherein furan is hydrogenated to tetrahydrofuran in the presence of a Raney nickel catalyst.
Assignees
Inventors
Classifications
- C07D307/08Primary
Preparation of tetrahydrofuran · CPC title
Palladium · CPC title
with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms · CPC title
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- What does patent US2016159762A1 cover?
- A process is described for producing furan from furfural from biomass, wherein furfural in an aqueous mass or stream from the liquefaction of biomass or a biomass fraction including one or more furfural precursors is extracted into an organic solvent which is readily separable from furan by simple distillation at atmospheric pressure, furfural is catalytically decarbonylated to furan in the org…
- Who is the assignee on this patent?
- Archer Daniels Midland Co
- What technology area does this patent fall under?
- Primary CPC classification C07D307/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 09 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).