Basf Se Corporation

Basf Aktiengesellschaft

Andreas Spiegel

Gerhard Olbert

Holger Friedrich

Andreas Woelfert

Stephan Deuerlein

Regine Helga Bebensee

Harald Würz

Denis Stella

Andreas Wölfert

Michael Lorenz

Jochen Gauer

Wolfgang Gmeiner

Peter Odermatt

J&uuml;rgen Dittrich

The present invention relates to a reactor R with apparatus D, the latter comprising a gas- and/or liquid-permeable tray B, in the edge region of which there is disposed a lateral boundary W which fully encloses the tray B and forms a volume V comprising catalytic and/or noncatalytic shaped bodies (F), wherein there is at least one braid made of precious metal and/or base metal on the upstream side opposite the tray B, and the catalytic and/or noncatalytic shaped bodies (F) are selected from (i) shaped bodies (F) in the form of straight prisms, the footprint of which is selected from triangle, rectangle, hexagon or fragments of these polygons, and (ii) a combination of the shaped bodies (F) with shaped bodies (F) that are smaller than the shaped bodies (F), wherein groups of m to n shaped bodies (F), m and n being an integer from 3 to 30 with n&#x3e;m, are framed in a metal cassette open in the upstream direction and closed in the downstream direction by a gas-permeable tray, in a virtually seamless manner with side face to side face and with their longitudinal axis aligned in vertical direction, virtually completely covering the cross section of the tray, to form modules (M), and the modules (M), optionally with cooperation of a joint filler material, with vertical alignment of the longitudinal axis of the shaped bodies (F), are joined to one another virtually seamlessly in a mosaic-like manner.

Modular catalyst monoliths

The present invention relates to a catalyst for decomposition of nitrous oxide and also to its method of preparation and use.

Catalyst for decomposition of nitrous oxide

The present invention relates to a nitrous oxide decomposition catalyst, the preparation and use. The catalyst contains rhodium on a catalyst carrier. The carrier is obtained by mixing zirconium dioxide powder with a silicon compound as binder, to form a kneadable composition, homogenizing the composition, shaping the composition into shaped articles, drying and calcination, wherein the binder is selected from silicon compounds of general formulae (I) to (VI)(Hal)SiR&#x2003;&#x2003;(I)(Hal)Si(OR)&#x2003;&#x2003;(II)(Hal)Si(NRR)&#x2003;&#x2003;(III)RSi(OR)4-&#x2003;&#x2003;(IV)RSi(NRR)&#x2003;&#x2003;(V)(RO)Si(NRR)&#x2003;&#x2003;(VI)

Rhodium catalyst for decomposing nitrous oxide, the production thereof, and the use thereof

A sensor for detecting the instantaneous concentrations of a plurality of gas constituents of a gas, which contains a first zone in which the instantaneous concentration of oxygen is measured, a second zone in which the instantaneous concentration of NH is measured, and a third zone in which the instantaneous concentration of NO is measured.

Sensor for detecting the instantaneous concentrations of a plurality of gas constituents in a gas

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Ludwigshafen, Germany

Andreas Spiegel