Storage material for sulfur oxides

Details Storage material for sulfur oxides Storage material for sulfur oxides

B - Operations, Transporting

01

J

252/32, 23/348

B01J 21/04 (2006.01) B01D 53/50 (2006.01) B01D 53/94 (2006.01) B01J 20/04 (2006.01) B01J 21/10 (2006.01) B01J 23/40 (2006.01) B01J 33/00 (2006.01)

Patent

CA 2267054

The present invention relates to a storage material for sulfur oxides that contains a magnesium-aluminum spinel (MgO-Al2O3) and can be used as so-called sulfur trap to remove sulfur oxides from oxygen-containing exhaust gases of industrial processes. In particular it can be used for the catalytic exhaust gas purification of internal- combustion engines to remove the sulfur oxides from the exhaust gas in order to protect the exhaust gas catalysts from sulfur poisoning. The material is characterized in that it displays a molar ratio of magnesium oxide to aluminum oxide in the range of over 1.1:1 and that the magnesium oxide present in stoichiometric excess is homogeneously distributed in highly disperse form in the storage material.

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