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US 2018/0180281 A1Published application
A method for operating a fluidized bed boiler
AssigneeImprobed AB
InventorsBengt-Ake Andersson, Fredrik Lind, Henrik Thunman
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Abstract
The invention relates to a method for operating a fluidized bed boiler, comprising: a) setting the ratio of secondary oxygen containing gas to primary oxygen containing fluidizing gas to a value ranging from 0.0 to 0.8; b) carrying out the combustion of fuel with a fluidized bed comprising ilmenite particle; and to a fluidized bed boiler.
Claims15
A method for operating a fluidized bed boiler, comprising:
- a) setting the ratio of secondary oxygen containing gas to primary oxygen containing fluidizing gas to a value ranging from 0.0 to 0.8;
- b) carrying out the combustion of fuel with a fluidized bed comprising ilmenite particles.
A fluidized bed boiler characterized in that all of the ports for injecting oxygen containing gas into the furnace are primary injection ports and wherein preferably the fluidized bed boiler
- is a bubbling fluidized bed (BFB) boiler or a circulating fluidized bed (CFB) boiler;
- and/or
- comprises a fluidized bed comprising ilmenite particles.
Dependencies are inferred from the claim text.