Stackable structured packing with controlled symmetry

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 19/30 (2006.01) B01J 19/32 (2006.01) F25J 3/02 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2245084

A structured packing is disclosed. The structured packing has a plurality of packing elements stacked together as "building blocks" to provide the packing for an exchange column. Each packing element comprises a polyhedron (e.g., a cube) having a plurality of edges formed by elongated rods. At least one transfer sheet is disposed within the polyhedron (e.g., a cube), wherein the first end of each transfer sheet connects to a different edge of the polyhedron and the second end of each transfer sheet connects to another edge of the polyhedron. In one embodiment, the intersection of the transfer sheets forms two pyramids within the cube-shaped packing element, the bases of the pyramids being opposite sides of the cube and the spices of the pyramids intersecting substantially at the center of the cube. In the preferred embodiment, at least one side of each pyramid is open and the other sides of the pyramids formed by the intersecting transfer sheets provide flow surfaces within the packing elements. The elements allow great flexibility in the manner and relative orientations in which the elements can be packed together, allowing great design freedom to manufacturers and users of exchange columns.

Remplissage structuré formé de plusieurs éléments empilés comme éléments constitutifs d'une colonne. Chaque élément de remplissage comprend un polyèdre (p. ex., un cube) possédant plusieurs bords formés par des tiges allongées. Au moins une feuille de transfert est disposée dans le polyèdre. La première extrémité de chaque feuille de transfert est reliée à un bord différent du polyèdre, et la seconde extrémité de chaque feuille de transfert est reliée à un autre bord du polyèdre. Selon un modèle de cette invention, l'intersection des feuilles de transfert forme deux pyramides à l'intérieur de l'élément de remplissage en forme de cube, les bases des pyramides étant à des côtés opposés du cube et les sommets des pyramides s'entrecroisant essentiellement au centre du cube. Selon le modèle préféré, au moins un côté de chaque pyramide est ouvert et les autres côtés des pyramides formés par l'entrecroisement des feuilles de transfert forment des surfaces de circulation dans les éléments de remplissage. Ces éléments permettent une grande souplesse dans la façon d'empiler ensemble et d'orienter relativement les éléments, ce qui permet beaucoup de liberté de conception pour les fabricants et les utilisateurs de colonnes.

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