MACROPOROUS OXYGEN CARRIER SOLID WITH A REFRACTORY MATRIX, METHOD FOR THE PREPARATION THEREOF, AND USE THEREOF IN A CHEMICAL-LOOPING OXIDATION-REDUCTION METHOD

摘要

The invention relates to an oxygen-carrying solid, to its preparation and to its use in a process for the combustion of a hydrocarbon feed by oxidation-reduction by chemical looping on an active mass, the chemical loop combustion (CLC). The solid in the form of particles comprises an oxidation-reduction active mass formed of metal oxide (s) dispersed in a ceramic matrix comprising at least one oxide having a melting point greater than 1500 ° C., such as alumina, and has a specific macroporous initial texture. The oxygen-carrying solid is prepared from an aqueous suspension comprising grains of precursor oxides of the ceramic matrix of specific size, by a spray drying technique.