Method of and means for producing combustible gases from low grade fuel
US5857421A · kind A · utility
5Cited by
22References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Combustible gases from a solid fuel are produced by pyrolyzing the fuel in a pyrolyzer which also produces carbonaceous material. The carbonaceous material from the pyrolyzer is combusted in a furnace to produce combustion products that include hot flue gases and ash particulate. The combustion products are separated into a plurality of streams, one of which contains flue gases, and another of which contains hot ash which is directed into the pyrolyzer. Finally, the stream of flue gases from the furnace is used to dry the fuel that is supplied to said pyrolyzer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.