Patent · US Expired

Method and apparatus for the gasification of coal

US4300916A · kind A · utility

44Cited by

3References

6Claims

0Family size

Assignee

Kraftwerk Union Aktiengesellschaft · DE

Inventors

Hans Frewer · Marloffstein, DE
Rainer Muller · Penzberg, DE
Ulrich Schiffers · Eckental, DE

Key dates

Filing date	Feb 28, 1980
Grant date	Nov 17, 1981
Priority date	—
Expiry date	Feb 28, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10J2300/0976
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Gasification of coal by hydrogenation to produce CH.sub.4 hydrocarbons, and by steam to produce hydrogen. Forming a medium-grain and a small-grain fractions from coal. Hydrogenating the volatile and readily reactive components of part of the small-grain fraction to form hydrocarbons and coke. Mixing the coke with the other part of the small-grain fraction. Forming briquets from the mixture. Mixing the briquets with medium size coal fraction and steam gasifying to produce hydrogen. The hydrogentation is preferably carried out in a fluidized bed operation and the steam gasification in a fixed-bed operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.