FORMULATION OF OXIDES, ITS OBTAINING AND ITS USE AS OXYGEN CARRIER IN A PROCESS FOR OXIDATION AND / OR DEOXIDATION OF A GASEOUS FLOW

摘要

Formulation of oxides for use as oxygen carriers in a gas flow treatment process comprising several iterations of the following steps: reduction of at least a portion of said oxides in the presence of a first gas flow (FG1), and- oxidizing at least a portion of said reduced oxides in the presence of a second gas stream (FG2) comprising oxygen elements; said formulation comprising a mixture of oxides composed of: - at least one first oxide, said reagent, having good reactivity with said first gas stream (FG1), and- at least one second oxide, of said reagent, having a substantially constant reactivity with said first gas stream (FG1); the porosity of said oxide mixture being promoted by adding to said mixture of oxides of at least one compound, said adjuvant.The invention also relates to a process for obtaining the formulation and a gas flow treatment method using a fo according to the invention.