Total Raffinage Chimie

Hubert Simon

Sébastien Decker

Romain Lesage

Marc Bories

The invention relates to a metal anchoring mesh intended to be secured to a metal wall of a chamber of a fluid catalytic cracking unit, in order to form cells (). Said metal anchoring mesh comprises a plurality of wavy elementary parts () connected successively together, forming cylindrical surfaces that are able to respectively define said cells, said cylindrical surfaces each having a central axis of symmetry A, the wavy elementary parts () each having protruding tongues ('), said protruding tongues being able to extend respectively inside said cells (). Said tongues (&#x2032;) extend along a length less than a quarter of the distance d that extends between said cylindrical surface and said central axis of symmetry A of said cylindrical surface.

Anchoring mesh for an anti-erosion coating

The invention relates to a gas injection element () for a system for distributing as gas inside a chamber of a fluid catalytic cracking unit. This injection element comprises a passage () passing right through it in a longitudinal direction (X), and &#x2014;a metallic internal element () of which an internal surface () defines part of the through-passage () passing through in a longitudinal direction (X), &#x2014;a hollow metal sleeve () accepting one end () of the internal element () and attached thereto, &#x2014;a hollow metal support () having an internal surface () defining the remainder of the through-passage passing through in the longitudinal direction (X), the said sleeve also being attached to one end of the support ().

Gas injection element for a fluid catalytic cracking unit and gas distribution system equipped with this injection element

The invention relates to an enclosure () of a fluid catalytic cracking unit in which an inner space is defined by a side wall () having a longitudinal axis extending substantially in the direction of gravity, said enclosure being provided with a plurality of mechanical separation cyclones () located inside the inner space. The enclosure () comprises a supporting device () attached only to the cyclones () by: an annular peripheral support element () extending along the side wall () in a plane perpendicular to the longitudinal axis (X), separated from the side wall by a predetermined clearance; and a plurality of beams () extending in the same plane as the peripheral support element (), the beams being rigidly connected to the peripheral support element and to at least one mechanical separation cyclone by one end or by an attachment part distant from the ends thereof.

Enclosure of an FCC unit comprising an inner support device rigidly connected to cyclones

A honeycomb metal anchoring structure, as described herein, is formed from a plurality of strips assembled in pairs so as to define a plurality of cells. Each strip is divided along its length into a plurality of portions, including at least one series of planar assembly portions juxtaposed and assembled with a series of assembly portions of an adjacent strip by fastening means, each strip having a lower longitudinal edge intended to be applied against a wall to be protected and an upper longitudinal edge opposite the lower longitudinal edge. The anchoring structure additionally comprises a plurality of protective tabs connecting each pair of juxtaposed assembly portions each protective tab being attached to an assembly portion by a longitudinal join line and extending in the direction of the juxtaposed assembly portion, at least up thereto.

Anchoring structure for an anti-erosion coating, in particular for protecting a wall of an FCC unit

The invention relates to a metal element () for anchoring an anti-erosion coating that is intended to be fastened alone in an isolated manner to a metal wall or assembled with other identical anchoring elements. The anchoring element () has an edge () for fastening to said metal wall and an anchoring body firmly attached to the fastening edge () and having an upper edge () that is away from the fastening edge and intended to be covered by a composite material of concrete type. A section of this upper edge (), which is not intended to be juxtaposed and assembled with an upper edge of an identical anchoring element, is provided with a delimiting tab () in order to delimit a height of composite material that must cover the upper edge () of said anchoring element, said delimiting tab () having a delimiting edge () that is a predetermined distance away from a plane defined by the upper edge () of the anchoring element.

Element for anchoring an anti-erosion coating to an inner wall of a chamber of an FCC unit

A process for producing an anti-erosion coating on an inner or outer metal wall of a chamber of a fluid catalytic cracking unit, comprising:

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Le Havre, France

Hubert Simon