Title:
UNBURNT CARBON REDUCTION METHOD AND HEATING METHOD USING FERRIC OXIDE
Document Type and Number:
WIPO Patent Application WO/2022/224986
Kind Code:
A1
Abstract:
Provided are: a method for reducing unburnt carbon contained in fly ash, the method involving heating fly ash under an oxygen-containing atmosphere in the state where the fly ash is placed in contact with a ferric oxide-containing substance; and a method for heating a target to be heated in a fluidized bed furnace, wherein a carbon-containing fuel is burnt using a particulate ferric oxide-containing substance as a bed material to maintain the furnace body temperature.
Inventors:
DEGUCHI TAKUMI (JP)
OMURA KOHEI (JP)
SEKI TAKUYA (JP)
OMURA KOHEI (JP)
SEKI TAKUYA (JP)
Application Number:
PCT/JP2022/018274
Publication Date:
October 27, 2022
Filing Date:
April 20, 2022
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
C04B18/08; B09B3/40; F23C13/08
Domestic Patent References:
| WO2020189109A1 | 2020-09-24 |
Foreign References:
| JP2017210378A | 2017-11-30 | |||
| JP2014129210A | 2014-07-10 | |||
| JPH07195053A | 1995-08-01 | |||
| JPH0719440A | 1995-01-20 | |||
| JP2006131962A | 2006-05-25 | |||
| JP2005207627A | 2005-08-04 |
Attorney, Agent or Firm:
TAKATSU Kazuya (JP)
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