Total Raffinage Distribution S.a.

Institut Francais Du Pe'trole

Mariano Del Pozo

Thierry Gauthier

Marc Fersing

Daniel Barthod

Jean-Louis Mauleon

Renaud Pontier

Patrick Leroy

Thierry Patureaux

Regis Bonifay

Gerard Courteheuse

Damien Gille

Tanneguy Descazeaud

The invention concerns a stripping method for extracting solid fluidized particles whereby the particles to be stripped are subjected to a first stripping in a first chamber ( ), then at least a second stripping in a second chamber ( ) wherein are provided solid/gas separating means allowing the gaseous fluids derived from the second stripping to directly pass through from the bottom to the top but preventing them from going up again into the first chamber ( ). The invention also concerns a device for implementing said method.

Stripping method for extracting solid fluidized particles and implementing device

The upstream portion of a reactor ( ), contains, between the feeding area of the catalyst flow and the injection area of the charge to be cracked, at least one solid and attached packing element ( ), that extends over all or part of the cross section of the reactor and consists of a network of cells through which pass the catalyst particles. This network makes it possible to create at least one step of division and recombination of the flow of catalyst particles, so as to redistribute the latter in a homogenous manner over the cross section of the reactor.

Fluid state catalytic cracking reactor having solid fastened packing element for homogeneously distributing particle flow

The invention relates to a hydrocarbon catalytic cracking method in the presence of a catalyst in fluidized phase, within a tubular type reactor (1) containing an injection area. According to the invention, a substantial part of the load to be cracked is introduced into the injection area using at least one means of injection (3) of such load against the flow, in relation to the direction of flow of the catalyst grains, and a substantial part of the load to be cracked is simultaneously introduced in the same area using at least one means of injection (2) of such load in direction of the flow in relation to the direction of flow of the catalyst grains.

Method and apparatus for selective vaporization of hydrocarbon loads in

A separator and process for separating particles from a gaseous mixture wherein the separator includes: at least one chamber comprising a zone (1) which forms a rectangular or square cross section for passage of the mixture circulating in a tube reactor (R) towards a turning zone (3) which rotates the mixture in a vertical plane through an angle of at most 360 degrees; an external wall (30) which defines the turn through an angle of 70 to 225 degrees; a deflection (10) which turns co-axially with the external wall (30) through an angle of at least 30 degrees and at most the angle through which the external wall turns plus 90 degrees; a gas outlet (4) which is coaxial with the turning zone; the separator is indirectly or otherwise connected to a secondary cyclone (12). It also includes a particle outlet (9) having a wall (32) connected to forming zone (1).

Direct turn separator for particles in a gaseous mixture and its use for

Method and device for descending catalytic cracking by injecting

Method for fluid catalytic cracking of hydrocarbon feedstock

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Le Havre, France

Mariano Del Pozo