EP 0484993 B1 19940105 - Process for controlling the start-up of a fluidised bed gasification of solid fuel.
Title (en)
Process for controlling the start-up of a fluidised bed gasification of solid fuel.
Title (de)
Verfahren zum Regeln des Anfahrens einer Vergasung fester Brennstoffe im Wirbelzustand.
Title (fr)
Procédé pour la régulation de la mise en marche d'une gasification en lit fluidisé d'un combustible solide.
Publication
Application
Priority
DE 4035293 A 19901107
Abstract (en)
[origin: US5145491A] Fuels are gasified in a fluidized state by a treatment with oxygen-containing gas and water vapor in a gasifying reactor. A solids mixture which contains ash and fine-grained fuels is combusted in a heating-up phase, which precedes the gasification and in which the temperature in the reactor is increased approximately to the temperature desired for the gasification. In a succeeding inertizing phase the supply rate of oxygen-containing gas is decreased and an inert gas is fed to the reactor until the product gas no longer contains free oxygen whereas the temperature is maintained virtually constant. In the succeeding gasification the fuel supply rate is increased and, after an adjusting time, the temperature is maintained virtually constant at the value desired for the gasification in the range from 600 DEG to 1500 DEG C. The gasification temperature is controlled by a change of the fuel supply rate.
IPC 1-7
IPC 8 full level
C10J 3/54 (2006.01)
CPC (source: EP US)
C10J 3/487 (2013.01 - EP US); C10J 3/54 (2013.01 - EP US); C10J 3/723 (2013.01 - EP US); C10K 1/026 (2013.01 - EP US); C10J 2200/158 (2013.01 - EP US); C10J 2300/0959 (2013.01 - EP US); C10J 2300/0976 (2013.01 - EP US); C10J 2300/1223 (2013.01 - EP US); C10J 2300/1807 (2013.01 - EP US); C10J 2300/1884 (2013.01 - EP US); Y10S 48/04 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR IT LI
DOCDB simple family (publication)
DE 4035293 C1 19920102; AU 641055 B2 19930909; AU 8699491 A 19920514; DE 59100812 D1 19940217; EP 0484993 A1 19920513; EP 0484993 B1 19940105; US 5145491 A 19920908; ZA 918838 B 19930507
DOCDB simple family (application)
DE 4035293 A 19901107; AU 8699491 A 19911105; DE 59100812 T 19911001; EP 91202539 A 19911001; US 77781591 A 19911015; ZA 918838 A 19911107