04111158 is referenced by 68 patents and cites 5 patents.

A method of and apparatus for carrying out an exothermic process in which a combustible-containing solid (e.g. coal shale, pyrite or limestone in combination with fuel oil) are burned in a fluidized-bed reactor with primary and secondary streams of oxygen-containing combustion-sustaining gas (in a volume ratio of 1:20 to 2:1) supplied at different levels so that the primary gas acts as the fluidizing gas. The gas velocities and rate of gas feeds are controlled to provide a mean suspension density above the secondary gas inlet of 10 to 40 kg/m.sup.3. The major portion of solid feed is introduced into the space below the secondary gas inlet which is maintained substantially free of internal fixtures and the effluent gases are separated from the entrained solids which are recycled to the bed. Solids withdrawn from the bed are cooled in a fluidized-bed cooler and the temperature of the bed is maintained constant by the controlled recirculation of cooled solids thereto from the cooler. The gas heated in the cooler is fed to the bed as the secondary gas.

Title
Method of and apparatus for carrying out an exothermic process
Application Number
5/801007
Publication Number
4111158
Application Date
May 26, 1977
Publication Date
September 5, 1978
Inventor
Ludolf Plass
Kronberg
DE
Martin Hirsch
Frankfurt am Main
DE
Lothar Reh
Frankfurt am Main
DE
Agent
Karl F Ross
Assignee
Metallgesellschaft Aktiengesellschaft
DE
IPC
F23D 19/00
F22B 1/02
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