The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2022
Filed:
Feb. 22, 2021
Applicant:
Improbed Ab, Malmo, SE;
Inventors:
Assignee:
Improbed AB, Malmo, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22B 34/00 (2006.01); C22B 34/12 (2006.01); F23C 10/18 (2006.01);
U.S. Cl.
CPC ...
C22B 34/1209 (2013.01); F23C 10/18 (2013.01); F23C 2900/10004 (2013.01);
Abstract
The invention relates to a method for starting up a fluidized bed boiler, such as a circulating fluidized bed (CFB) or a bubbling fluidized bed (BFB) boiler, for operation with a predetermined concentration of ilmenite particles in the bed material. The invention also relates to a method for pre-oxidizing ilmenite, to pre-oxidized ilmenite and to the use of pre-oxidized ilmenite in a fluidized bed boiler.