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:
Oct. 20, 2020
Filed:
Nov. 07, 2016
Applicant:
Improbed Ab, Malmo, SE;
Inventors:
Bengt-Ake Andersson, Molnlycke, SE;
Pavleta Knutsson, Molndal, SE;
Fredrik Lind, Torslanda, SE;
Henrik Thunman, Partille, SE;
Assignee:
Improbed AB, Malmo, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F23C 10/02 (2006.01); F23C 10/32 (2006.01); F23C 10/00 (2006.01); C22B 34/12 (2006.01);
U.S. Cl.
CPC ...
F23C 10/02 (2013.01); C22B 34/1204 (2013.01); F23C 10/00 (2013.01); F23C 10/007 (2013.01); F23C 10/32 (2013.01); F23C 2206/102 (2013.01); F23C 2900/10001 (2013.01);
Abstract
The invention relates to a method for operating a fluidized bed boiler, comprising carrying out the combustion process with a fluidized bed comprising ilmenite particles, wherein the average residence time of the ilmenite particles in the boiler is at least 75 hours. The invention further relates to ilmenite particles obtainable by a corresponding method and the use of said ilmenite particles as oxygen-carrying material.