US 12,173,382 B2
Combustion ash handling method and system, and petroleum-based fuel combustion plant
Hiroyuki Mori, Kobe (JP); Seiji Tabata, Kobe (JP); Suguru Yabara, Kobe (JP); and Tomohiro Osawa, Kobe (JP)
Assigned to KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
Appl. No. 17/606,654
Filed by KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
PCT Filed Apr. 24, 2020, PCT No. PCT/JP2020/017762
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2020/218534, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 2019-086802 (JP), filed on Apr. 26, 2019.
Prior Publication US 2022/0298602 A1, Sep. 22, 2022
Int. Cl. C22B 34/22 (2006.01); B03B 4/06 (2006.01); B03B 9/04 (2006.01); B09B 3/80 (2022.01); B09B 101/30 (2022.01); C01G 31/00 (2006.01); F23G 5/02 (2006.01); F23J 1/00 (2006.01); F23J 15/02 (2006.01)
CPC C22B 34/22 (2013.01) [B03B 4/06 (2013.01); B03B 9/04 (2013.01); B09B 3/80 (2022.01); C01G 31/00 (2013.01); F23G 5/02 (2013.01); F23J 15/022 (2013.01); B09B 2101/30 (2022.01); F23G 2209/30 (2013.01); F23J 1/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A combustion ash handling method of handling combustion ash discharged from a combustion furnace that combusts a petroleum-based fuel, the combustion ash handling method comprising:
separating the combustion ash into a heavy component and a light component by a dry-type separation technique;
feeding the light component to the combustion furnace as a fuel; and
recovering the heavy component.