Converting lignocellulosic biomass to glucose using a low temperature sulfur dioxide pretreatment
US11299850B2 · kind B2 · utility
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Key dates
| Filing date | Nov 9, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Nov 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for converting lignocellulosic biomass to glucose or ethanol includes subjecting the lignocellulosic biomass to a SO2 pretreatment within the temperature range 110° C.-150° C. Good glucose yields have been achieved when the SO2 pretreatment is conducted for more than 90 minutes and when the total amount of SO2 available is greater than 20 wt % based on dry weight of lignocellulosic biomass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.