Biomass process optimisation
US10000891B2 · kind B2 · utility
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4References
18Claims
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Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Feb 26, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C3/224
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is described a method of processing biomass which comprises the steps of: (i) processing biomass material in an aqueous system in the presence of an oxalic acid catalyst to produce a slurry; (ii) subjecting the slurry to an acidified organosolv liquor and optionally de-aerating the resulting mixture before exposing the mixture to ultrasound in a pretreatment step; and (iii) completing the fractionation process using thermal digestion, followed by separation of the constituents into lignin, hemi-cellulose (monosaccharides) and cellulose with the addition of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.