Ifp Energies Nouvelles

Total Raffinage Chimie

Total Research & Technology Feluy

Total Sa

Total Raffinage Chime

Totalenergies Onetech

Mahdi Yazdanpanah

Florent Guillou

Stephane Bertholin

Ann Cloupet

Bert Sels

Tiago Sozinho

Pieter Van Wouwe

Jamal Chaouki

Thierry Gauthier

Hélène Stainton

Benjamin Amblard

Sina Tebianian

Airy Tilland

Beatrice Fischer

Ann Forret

William Pelletant

Tedd Knowlton

Surya Reddy Karri

Stéphane Bertholin

The present invention relates to a device and a method for chemical looping combustion, for which the end of the intake duct () opening out within the chamber of the separator () is inclined with respect to a horizontal plane (H).

Device and method for chemical looping combustion, having a particle separator provided with an inclined intake duct

The invention relates to a CLC plant for the combustion of solid hydrocarbon feedstocks generating particles of unburnt residues, comprising a solid/solid separator above the combustion reactor in order to efficiently separate the particles of the oxygen-carrying solid from the particles of unburnt residues contained in the gas/solid mixture () exiting from the combustion reactor. The chamber () of the solid/solid separator, the combustion reactor and the inlet () for the gas/solid mixture () of the chamber have a parallelepiped shape. The inlet () is equipped at its top with means () for distribution of said gas/solid mixture in the chamber which extend over the entire length of the inlet, improving the solid/solid separation.

CLC facility comprising a solid/solid separator with means for distributing a gas-solid mixture

The present invention relates to a process for synthesizing lactide, comprising the steps of:

Single step lactide production process with separate entry for solvent

Single step lactide production process with heat recovery

Single step lactide production process with recovering water by decantation

The invention concerns a CLC process, and its installation, producing high purity dinitrogen, comprising:

CLC process and installation with the production of high purity nitrogen

The present invention relates to a process for synthesizing lactide comprising the steps of:

Single step lactide production process with hydrolysis of oligomers and catalyst by recovered water

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 is a method for chemical looping (CLC) oxidation-reduction combustion of liquid hydrocarbon feedstocks carried out in a fluidized bed. A liquid hydrocarbon feedstock () is partly vaporized on contact with a hot particle solid () to form a partly vaporized liquid feedstock and to form coke on the solid prior to contacting partial vaporized liquid feedstock () with a redox active mass of particles () to achieve combustion of the partially vaporized liquid feed (). The hot solid particles can notably be from a second fluidized-bed particle circulation loop.

Method and device for chemical loop combustion of liquid hydrocarbon feedstocks

The invention relates to a process and to a unit for chemical looping oxidation-reduction combustion of a hydrocarbon feed, wherein heat exchanges are controlled through a level variation of a dense fluidized bed of active mass particles in an external heat exchanger (E, E), positioned on a transport line carrying particles circulating between a reduction zone () and an oxidation zone () for the particles in the chemical loop. The bed level variation is allowed through controlled application of a pressure drop on a fluidization gas outlet in the heat exchanger, said pressure drop being compensated by the level variation of an active mass particle bed in a reservoir zone provided on the particle circuit in the chemical loop.

Process and apparatus for chemical looping redox combustion with control of the heat exchanges

The invention relates to an integrated method for gasification and indirect combustion of a solid hydrocarbon feedstock in a chemical loop, comprising: contacting solid hydrocarbon feedstock () with water () in a gasification reaction zone RG in order to discharge ashes () and to produce a gaseous effluent () comprising syngas and water, supplying reduction reaction zone RR of a redox chemical loop with at least part of gaseous effluent () produced in the gasification reaction zone in order to produce a COand HO-concentrated gaseous effluent (), reoxidizing the oxygen-carrying solid particles from reduction reaction zone RR of the chemical loop in oxidation reaction zone RO by means of an oxidizing gas () and discharging fumes (). The invention also relates to a plant allowing said integrated method to be implemented.

Growing community of inventors

Le Havre, France

Mahdi Yazdanpanah