Combination of hydrogenation and base catalyzed depolymerization for lignin conversion
US8871989B2 · kind B2 · utility
1Cited by
13References
16Claims
0Family size
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Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Mar 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the conversion of lignin to chemical precursors is presented. The process comprises treating the lignin to form less acidic compounds. The process includes reacting lignin with a hydrogenation catalyst under a hydrogen atmosphere to convert acidic oxygenate compounds to less acidic oxygenates or hydrocarbons. The oxygenate compounds are reacted in a dehydrogenation and deoxygenation process to remove the oxygen and to convert the cyclic hydrocarbons back to aromatic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.