Ifp Energies Nouvelles

Total Raffinage Chimie

Compagnie Generale Des Etablissements Michelin

Institut Francais Du Pe'trole

Totalenergies Onetech

Arnold Lambert

Delphine Marti

Elodie Comte

Alexandra Chaumonnot

Catherine Laroche

Florent Guillou

Ali Hoteit

Nicolas Cadran

John Roesler

Mathieu Michau

The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is in the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least one oxide with a melting point higher than 1500&#xb0; C., such as alumina, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from an aqueous suspension containing precursor oxide grains for the ceramic matrix that have a specific size, by a spray-drying technique.

Macroporous oxygen carrier solid with an oxide ceramic matrix, method for the preparation thereof, and use thereof for a chemical-looping oxidation-reduction method

A mesoporous mixed oxide catalyst that comprises silicon and at least one metal M that is selected from the group that consists of the elements of groups 4 and 5 of the periodic table and mixtures thereof, with the mass of metal M being between 0.1 and 20% of the mixed oxide mass.

Mesoporous mixed oxide catalyst comprising silicon

The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is in the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least at least one feldspar or feldspathoid with a melting point higher than 1500&#xb0; C., such as celsian, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from a precursor of the ceramic matrix, obtained from a macroporous zeolitic material with zeolite crystals of a specific size, and a precursor of the oxidation-reduction active mass.

Macroporous oxygen carrier solid with a refractory feldspar/feldspathoid, method for the preparation thereof, and use thereof in a chemical-looping oxidation-reduction method

The invention relates to an integrated method of in-situ oxygen production, chemical looping combustion and gasification of liquid, solid or gaseous fuels allowing combustion of coal, petroleum coke and/or liquid hydrocarbons and notably heavy and/or extra heavy or bituminous residues for production of synthesis gas under pressure and/or energy.

Integrated energy and/or synthesis gas production method by in-situ oxygen production, chemical looping combustion and gasification

The invention relates to the use of a novel type of active mass in looping redox processes. Said mass contains a spinel of formula CuFeAlOwith 0&#x2266;x&#x2266;0.1. The active mass according to the invention has a high oxygen transfer capacity and improved oxidation and reduction rates.

Use of redox mass having a spinel type structure for a looping redox process

The present invention relates to a process for separating oxygen at high temperature by means of a material comprising at least one compound according to the formula ABOyHO with a lamellar structure composed of sheets generated by the sequence of octahedra connected to one another by the edges, whereby A is at least one of the elements IA or IIA of the periodic classification of elements, B is at least one of the elements IIIB to IIB of the periodic classification of the elements, 0&#x3c;x&#x2266;2, 0&#x2266;y&#x2266;2, and &#x2212;0.4&#x2266;&#x3b4;&#x2266;0.4.

Process for the production of oxygen at high temperature with materials of the manganese oxides type having a lamellar structure

The invention relates to the use of materials of mixed iron-manganese oxide type for high-temperature oxygen production, notably by separation of oxygen from air, and said materials can be reversibly reduced at high temperature when subjected to an oxygen partial pressure decrease and oxidized when the oxygen partial pressure is higher. The oxidized form of mixed iron-manganese oxides has a bixbyite and/or hematite structure.

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Chavanay, France

Arnold Lambert