Bed management cycle for a fluidized bed boiler and corresponding arrangement

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United States of America Patent

PATENT NO 11187406
APP PUB NO 20190072270A1
SERIAL NO

15766542

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Abstract

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The invention relates to abed management cycle for a fluidized bed boiler, comprising the steps of: a) providing fresh ilmenite particles as bed material to the fluidized bed boiler; b) carrying out a fluidized bed combustion process; c) removing at least one ash stream comprising ilmenite particles from the fluidized bed boiler; d) separating ilmenite particles from the at least one ash stream; e) recirculating separated ilmenite particles into the bed of the fluidized bed boiler. The invention also relates to a corresponding arrangement for carrying out fluidized bed combustion, comprising a fluidized bed boiler comprising ilmenite particles as bed material; and a system for removing ash from the fluidized bed boiler; wherein the arrangement further comprises a separator for separating ilmenite particles from the re-moved ash; and means for recirculating separated ilmenite particles into the bed of the fluidized bed boiler.

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Patent Owner(s)

Patent OwnerAddress
IMPROBED ABMALMO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andersson, Bengt-Ake Molnlycke, SE 11 10
Knutsson, Pavleta Molndal, SE 2 0
Lind, Fredrik Torslanda, SE 9 10
Thunman, Henrik Partille, SE 11 10

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