Process for feeding and gasifying solid carbonaceous fuel
US4624684A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1985 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Sep 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S48/07
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A partial oxidation process for the production of a stream of mixed gases comprising H.sub.2 and CO. An aqueous particulate solid carbonaceous fuel slurry feedstream is preheated by indirect heat exchange with a process-derived stream of skimmed gases substantially comprising H.sub.2 O. The aqueous carrier of the slurry is vaporized by introducing superheated steam directly into the slurry pipeline. A suspension of particulate solid carbonaceous fuel entrained in a gaseous mixture substantially comprising steam e.g. about 90 to 99.9 wt. % H.sub.2 O and about 0.1 to 10 wt. % of a CO.sub.2 -containing gas mixture is produced. The suspension of solid fuel in the gaseous mixture is then separated in a skimming operation into an overhead gas stream substantially comprising steam, as previously described, and a bottom stream comprising particulate solid carbonaceous fuel with the remainder of said gaseous mixture. The bottom stream from the skimming operation is introduced into the reaction zone of a partial oxidation gas generator in admixture with a free-oxygen containing gas and with or without a temperature moderator where a gaseous stream comprising H.sub.2 +CO is produced. In one e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.