Solvo-thermal hydrolysis of xylose
US8119823B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2009 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Mar 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for producing furfural from xylose comprising: (a) mixing an aqueous xylose solution containing xylose oligosaccharides with sub-critical or near-critical water to form a mixture at a first temperature and a first pressure; (b) maintaining the mixture at the first temperature and the first pressure for a first time period; and (c) rapidly cooling the mixture to a second temperature and a second pressure, wherein furfural is produced by the process (d) process can also be carried out with or without mixing of carbon dioxide with aqueous xylose solution before it is mixed with sub-critical or near-critical water to form a mixture at a first temperature and pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.