Sulzer Chemtech Ag

Sulzar Chemtech Ag

Felix Moser

Markus Fleischli

Markus Friedrich Fischer

Joachim Schoeck

Sebastian Hirschberg

Sabine Sulzer Worlitschek

Gerhard Sebastian Hirschberg

Fritz Heiniger

Albert Hug

Nikolaus Zablonier

The static mixer () includes at least one vane pair () for the generation of a flow swirl () in the direction () of a passage flow (). Edges of the vanes at the front at the leading side are perpendicular to the passage flow and parallel to a height of the passage (). Onflow surfaces following downstream are bent out in a concave manner and in opposite senses. Each vane () is formed as an aerodynamically designed body which includes an end wall (), a convex side wall () and a concave side wall (). The end wall has a convex shape or a shape of a leading edge. The vane cross-sections perpendicular to the side walls in particular have similar shapes to cross-sections of aeroplane wings.

Static mixer having a vane pair for the generation of a flow swirl in the direction of a passage flow

A static mixing element for installation in a hollow body () includes a plurality of bar elements, with a first arrangement () including at least one first bar element () and being arranged cross-wise with respect to a second arrangement () which includes at least one second bar element (). The first arrangement () and the second arrangement () include an angle different from 0&#xb0; to the main direction of flow. The first arrangement includes an angle larger than 0&#xb0; with the second arrangement. On projection of the first arrangement () and of the second arrangement () onto a projection plane which is disposed normal to the main direction of flow, intermediate spaces are disposed at least partly between mutually adjacent bar elements.

Static mixing element

The static mixer has a polymorphic structure that can be used for mixing or homogenizing a fluid medium. The mixer has at least two sections arranged in a tube one after the other in the longitudinal direction. Baffles of the first section that are effective to promote mixing redistribute the medium to be mixed largely globally over the entire cross-section of the tube. Baffles of the second section that are effective to promote mixing effect largely local mixing in partial regions, which in each case contain only one part of the tube cross-section. The baffles of both sections have the same or approximately equally large hydraulic diameters.

Static mixer with polymorphic structure

A counterflow column that includes a liquid distributor including a plurality of tubular or trough-like distributor members. The distributor members are arranged in a column above a packing such that a plurality of partial flows develop in an upwardly flowing gas at the level of the distributor members. Stagnation zones are present between the packing and the distributor members. Through screen-off structure, not required per se for a liquid output, the stagnation zones and/or the flow of a liquid to be distributed are influenced such that a liquid, after emerging from the distributor members and prior to entry into the packing, traverses in free fall through the stagnation zones, and where appropriate also further regions, in which the gas flow is largely free of horizontal velocity components. The gas flow may also be influenced by a suitable shaping of the distributor members.

Counterflow column with a liquid distributor

With the method a fluid ( ) is fed into an apparatus ( ), in particular into a column, in which an infeed tube ( ) for the fluid opens into a deflection unit ( ). This deflection unit is arranged at a vertical distance from installations ( ), in particular a column packing. Two partial flows ( ) are formed in the deflection unit which flow largely mirror symmetrically along an inner wall of the apparatus ( ) and then, after a reunion, form a backwardly moving flow ( ), the horizontal velocity component of which is directed radially to the deflection unit. At least one third partial flow ( ) is formed by the deflection unit which is directed radially and oppositely with respect to the backwardly moving flow of the reunited partial flows. The third partial flow is developed so strongly that the backwardly moving flow is largely prevented from flowing through the column center.

Method for the infeed of a fluid into an apparatus

A liquid distributor for packing columns. The liquid distributor includes at least one tubular or trough-like distributor member including outlet openings for an output of liquid in the form of jets. Screens are arranged ahead of the outlet openings onto which the incident liquid jets are deformed to liquid films flowing off. The outlet openings screen the outlet openings against an upwardly flowing gas flow. In the event of a maximum output of liquid, the liquid jets are incident onto the screens at angles that are less than 60&deg;, and even as much as less than 10&deg;.

Liquid distributor for packing columns

The material exchange column contains a packing which can be installed in the horizontal position of the column. The column has a ring gap between the packing and the column wall in which collars are arranged. The latter each comprise a band-shaped region (,) which lies in contact with the packing. At the upper edge of the band-shaped collar regions there adjoin spring-elastically connected surface pieces which produce a bridge to the wall and which are provided for a return conduction of the liquid from the wall to the packing during the operation of the column. It applies at least for some of the collars that the latter have elevations in their band-shaped regions which hold the ring gap open in a form-stable manner under the load of the packing when the column lies horizontally.

Collars within a ring gap of a material exchange having a packing

The distributor device for a column includes a system of distributor tubes and nozzles for a fluid. The outlet apertures of the nozzles are preferably all arranged at the same height. At least a portion of the nozzles are manufactured of similar glass tube pieces. Each outlet aperture has a border which is formed by an edge produced by a milling cut and is otherwise untreated or by an untreated, broken glass edge.

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Neftenbach, Switzerland

Felix Moser