High pressure gasification of coal using nitrogen dilution of waste gas from steam generator
US4019314A · kind A · utility
57Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1976 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Jan 27, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10J2300/1884
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a process for the production of a fuel gas by the pressure gasification of carbon-containing fuels with oxygen and steam, wherein the oxygen is manufactured in a low temperature air separation plant and the steam is formed in a gas-heated steam boiler, and the waste gases produced in the steam boiler are subsequently expanded in an expansion turbine, the improvement which comprises admixing the nitrogen produced during the air separation with the waste gases before the expansion of the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.