Sulzer Chemtech Ag

Jean P Stringaro

Roger Dekumbis

Lorenzo Ghelfi

The exhaust gas catalytic converter (1) with an ordered substrate structure (10) for catalysing material comprises layers (13) with parallel channels. The layers are substantially parallel to the direction (15) of main flow of the exhaust gas. The cross-sectional surfaces of the substrate structure along the direction of main flow has, according to the invention, at least partly variable area and/or variable shape; the channels make with the direction of main flow and angle between about 10.degree. and 70.degree. and the channels in adjacent layers are open towards each other and cross each other. The exhaust gas catalytic converter according to the invention enables its shape to be adapted to the conditions of small space.

Exhaust gas catalytic converter, particularly for motor cars

The packing having catalytic or adsorbent agents, which is provided for at least one fluid medium, comprises packing elements (10) disposed in stacks, which are assembled from layers aligned along the main direction of flow (2). The layers are formed by packing parts (1), the walls (2) of which are permeable for the medium. The packing parts contain a catalyst material (3). Between the packing parts are provided flow ducts, which intersect and are open to one another. According to the invention the layers are formed by a plurality of packing parts (1), the packing elements (10) comprise support structures (4) into which the packing parts are inserted, and the packing parts are substantially cylindrical.

Packing having catalytic or absorbent agents

The catalyzing fixed bed reactor (100) for at least one fluid medium has packing elements (10) disposed in stacks, which are composed of layers aligned along the main direction of flow (2). The layers are formed by cushion-like packing parts (1), the walls (1a, 1b) of which are permeable to the medium. The packing parts contain a catalyst material (3). The spaces in the packing parts are flow ducts, which intersect and are open with respect to one another. The interior spaces of the packing parts are formed by parallel ducts (11), which are provided in the form of a relief-type profiling of the walls (1a, 1b), so that the these ducts intersect, are open in relation to one another and are also sealed at the edge (12) of the packing parts. The walls also touch one another in the inner region of the packing parts, and the two walls are connected to one another at least at one part of these contact points (15).

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Winterthur, Switzerland

Jean P Stringaro