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:
Sep. 29, 2026
Filed:
Jul. 04, 2022
Ifp Energies Nouvelles, Rueil-Malmaison Cedex, FR;
Totalenergies Onetech, Courbevoie, FR;
Catherine Laroche, Rueil-Malmaison Cedex, FR;
Florent Guillon, Rueil-Malmaison Cedex, FR;
Airy Tilland, Rueil-Malmaison Cedex, FR;
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
TOTALENERGIES ONETECH, Courbevoie, FR;
Abstract
The present invention concerns a CLC method and plant for a hydrocarbon feedstock, comprising combustion of said hydrocarbon feedstock () on contact with an oxygen carrier in form of particles in a reduction zone (R), and oxidation of the oxygen carrier from reduction zone (R) on contact with an oxidizing gas, preferably air, in an oxidation zone. According to the invention, gaseous oxygen is released by the oxygen carrier in a sealing device (S) operating in a dual fluidized bed and positioned in the path of said carrier from the oxidation zone to the combustion zone, and it is mixed with part of the combustion fumes intended to be recycled to the reduction zone. The gaseous oxygen then enables combustion of the residual unburned species that may be contained in the combustion fumes and/or it participates in the combustion of the hydrocarbon feedstock in the reduction zone.