Sulfur dioxide and/or sulfurous acid pretreatment
US10662455B2 · kind B2 · utility
3Cited by
24References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Mar 14, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for producing alcohol from lignocellulosic biomass includes adding at least one of sulfur dioxide and sulfurous acid to the lignocellulosic biomass to provide an effective sulfur dioxide dosage and/or effective sulfur dioxide slurry concentration, each of which is calculated using the ratio of the volume of the slurry in the pretreatment reactor to the total volume of the pretreatment reactor, within a predetermined range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.