Method and system for processing lignocellulose material
US11319603B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2018 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Sep 21, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for processing lignocellulose materials comprising the steps of hydrothermal treatment of the material with saturated or superheated steam in a hydrothermal pressure vessel, wherein the steam is provided by means of a steam boiler. The treatment is performed at a pressure of 5-30 bars, and at a temperature of 160-240° C. for a duration of 1-20 minutes. The method further comprises discharging hydrothermally treated lignocellulose material and steam from the pressure vessel by means of rapid pressure reduction, separating the steam and vapours released from the lignocellulose material, and burning the vapours together with additional fuel and combustion air in the furnace of said steam boiler. Furthermore, a corresponding system is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.