Method and apparatus for recovering heat in a spent liquor recovery boiler
US5603803A · kind A · utility
11Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Apr 13, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus for use in the pulp industry for recovering heat in the spent liquor recovery boiler, whereby the boiler walls are formed of water-cooled tubes connected to the water/steam circulation system of the boiler. The lower section of the boiler is defined by water tubes connected to a separate water circulation system of a forced type. Thus, heat is preferably recovered in the lower section of the boiler by a separate water circulation system having a lower pressure than in the water/steam circulation system of the boiler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.