Inhibition of sulfide inclusion in slag
US4954137A · kind A · utility
11Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Dec 19, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S48/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the gasification of coal is described which comprises partially combusting particulate coal in a gasification reactor comprising a gasification zone and a water bath and producing a hot gaseous stream containing synthesis gas and flyash, and slag, in the gasification zone. The slag produced is allowed to discharge from the gasification zone into the water bath, the redox potential of the water bath being formulated or maintained at a level sufficient to inhibit sulfide presence or inclusion in the slag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.