Nitrogen oxide storage material and nitrogen oxide storing...

Details Nitrogen oxide storage material and nitrogen oxide storing... Nitrogen oxide storage material and nitrogen oxide storing...

B - Operations, Transporting

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252/35, 23/353,

B01J 23/63 (2006.01) B01D 53/56 (2006.01) B01D 53/94 (2006.01) B01J 20/04 (2006.01) B01J 23/58 (2006.01) B01J 35/02 (2006.01) B01J 37/03 (2006.01) F01N 3/08 (2006.01)

Patent

CA 2280631

The invention relates to a nitrogen oxide storage material which contains at least one storage component for nitrogen oxides, in the form of an oxide, mixed oxide, carbonate or hydroxide of the alkaline earth metals magnesium, calcium, strontium and barium and the alkali metals potassium and caesium, on a high surface area support material. The storage material is characterised in that the support material is selected from the group comprising doped cerium oxide, cerium/zirconium mixed oxide, calcium titanate, strontium titanate, barium titanate, barium stannate, barium zirconate, magnesium oxide, lanthanum oxide, praseodymium oxide, samarium oxide, neodymium oxide, yttrium oxide, zirconium silicate, yttrium barium cuprate, lead titanate, tin titanate, bismuth titanate, lanthanum cobaltate, lanthanum manganate and barium cuprate, or mixtures thereof.

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