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US 4,287,097 AGranted
Carrier matrix for catalysts and a process for the production of same
AssigneeDegussa AG
InventorsGerhard Fratzer, Bernhard Beck, Erwin Dold, Hans Klebe
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AssigneeDegussa AG
InventorsGerhard Fratzer, Bernhard Beck, Erwin Dold, Hans Klebe
Estimating the term…
An improved carrier matrix for catalysts is described wherein layers are disposed one on top of the other consisting of highly temperature resistant and non-scaling steel formed into a smooth screen into which closed hollow or open supporting profiles of a larger cross section than the screen are woven in or on at parallel distances. Layers of screens provided with profiles may be combined with layers of flat screens or smooth or corrugated sheet metal. The carrier matrix may be coated with a catalytically active carrier such as gamma-aluminum oxide and then receive a coating of a catalytically active metal whereby the resulting product may be used to treat auto exhaust gases for purification.
In a carrier matrix for catalysts with cross flow effect as well as with an enlarged geometric surface, comprising layers disposed one on top of the other of highly temperature resistant and non-scaling steel, the improvement wherein the layers comprise at least one smooth screen into which at parallel distances and in the direction of the desired flow channels, closed hollow or open supporting profiles of a larger cross section than the screen are woven on or into the screen.
Dependencies are inferred from the claim text.