Gasification of coal
US4643109A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1985 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Nov 26, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10J2300/0976
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fixed bed dry bottom coal gasifier has a cylindrical wall providing a gasification chamber for gasifying coal to produce synthesis gas. It also has a coal lock above the chamber. The coal lock has a coal discharge opening leading into the chamber. A gas outlet leads from the chamber at a high level. The gasifier further includes a first static coal distributor located in the gasification chamber below the coal discharge opening of the coal lock and a second static coal distributor located below the first coal distributor. The first coal distributor has an upper opening spaced with vertical clearance from the coal discharge opening, a lower opening spaced from the upper opening, and an upwardly directed peripheral coal distributing surface flaring downwardly outwardly from said upper opening and extending beyond the vertical projection of the periphery defining the coal discharge opening. The second coal distributor also has an upper opening and a lower opening, its upper opening being spaced with vertical clearance from the lower opening of the first distributor. The second distributor has a passageway extending from its upper to its lower opening through which coal can be distri…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.