Ifp Energies Nouvelles

Total Raffinage Chimie

Total Sa

Total Raffinage Chime

Totalenergies Onetech

Hélène Stainton

Florent Guillou

Tiago Sozinho

Mahdi Yazdanpanah

Ann Cloupet

Stephane Bertholin

Thierry Gauthier

Beatrice Fischer

Ali Hoteit

Heloise Dreux

Ann Forret

William Pelletant

The invention relates to a method and to a plant for chemical looping oxidation-reduction combustion (CLC) of a gaseous hydrocarbon feed, for example natural gas essentially containing methane. According to the invention, catalytic steam reforming of the feed is performed between two successive feed combustion steps on contact with an oxidation-reduction active mass in form of particles. The reforming catalyst is arranged in a fixed bed in an intermediate reforming zone () between the two reduction zones () where the two combustion steps are conducted.

Method and plant for chemical looping oxidation-reduction combustion of a gaseous hydrocarbon feedstock with intermediate catalytic steam reforming of the feed

In a method and a plant for chemical looping oxidation-reduction combustion (CLC) of a gaseous hydrocarbon feed, for example natural gas essentially containing methane, catalytic reforming of the feed is performed within the reduction zone where combustion of the feed is conducted on contact with an oxidation-reduction active mass in form of particles. The reforming catalyst comes in form of untransported fluidized particles within the reduction zone. The catalyst thus confined in the reduction zone does not circulate in the CLC loop.

Method and plant for chemical looping oxidation-reduction combustion of a gaseous hydrocarbon feedstock with in-situ catalytic reforming of the feed

The invention relates to a plant and to a method for chemical looping oxidation-reduction combustion of a gaseous hydrocarbon feed, for example natural gas essentially containing methane. According to the invention, catalytic pre-reforming of the feed is performed in a pre-reforming zone comprising a fixed reforming catalyst, while benefiting from a heat transfer between the reduction or oxidation zone of the chemical loop and the pre-reforming zone adjoining the reduction or oxidation zone. Pre-reforming zone () and oxidation zone () or pre-reforming zone () and reduction zone () are thus thermally integrated within the same reactor () while being separated by at least one thermally conductive separation wall ().

Plant and method for chemical looping oxidation-reduction combustion of a gaseous hydrocarbon feedstock with catalytic pre-reforming of the feed

The invention relates to a method and to a device for chemical looping combustion CLC of a solid hydrocarbon feed wherein it is proposed to inject the solid hydrocarbon feed so as to limit any occurrence of sticking of the feed to the walls of the injection device. The solid feed is fed into a conveying zone operating under fluidized bed conditions and opening into a combustion reactor. A fluidization gas is injected into this conveying zone while controlling the flow of gas in such a way that the superficial velocity of the gas in the conveying zone is higher than the terminal velocity of the solid hydrocarbon feed particles and the terminal velocity of solid particles present in the combustion reactor, and while controlling the fluidization gas temperature in such a way that the temperature in the conveying zone is less than or equal to 500&#xb0; C.

Method and plant for redox chemical looping combustion of a solid hydrocarbon feedstock

The object of the invention is a combustion method for a solid feed using a chemical loop wherein an oxygen-carrying material circulates, said method comprising at least:

Chemical looping combustion method with a reaction zone including a gas-solid separation zone and plant using same

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Lyons, France

Hélène Stainton