Process for treating black liquor
US10184213B2 · kind B2 · utility
1Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Sep 22, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention discloses a process for treating black liquor comprising pyrolyzing black liquor in a fluidized bed reactor to obtain solid particles and pyrolyzed black liquor gas, heating the solid mass, returning the heated solid mass to the fluidized bed reactor for use in the pyrolysis reaction; condensing the pyrolyzed black liquor gas to obtain a condensate and recover heat and a residual gas released during condensation for heating the solid mass to a predetermined temperature for that is required for the pyrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.