B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 21/12 (2006.01) B01J 37/02 (2006.01) F01N 3/00 (2006.01)
Patent
CA 2665177
The present invention is directed to an improved catalyst support and to the resultant catalyst suitable for treating exhaust products from internal combustion engines, especially diesel engines. The support of the present invention is a structure comprising alumina core particulate having high porosity and surface area, wherein the structure has from about 1 to about 8 weight percent silica in the form of cladding on the surface area of said alumina core. The resultant support has a sulfur tolerance efficiency (.eta.) of at least 1000 µg/m2.
La présente invention concerne un support catalytique amélioré ainsi que le catalyseur résultant approprié pour traiter des produits d'échappement provenant de moteurs à combustion interne, en particulier des moteurs Diesel. Le support de la présente invention est une structure comportant un cAEur d'alumine particulaire de porosité et de surface élevées, la structure contenant environ 1 à 8 pour cent en poids de silice sous la forme de revêtement sur la surface du cAEur d'alumine. Le support résultant présente une efficacité de tolérance au soufre ( h) d'au moins 1000 µg/m2.
Koranne Manoj Mukund
Pryor James Neil
Gowling Lafleur Henderson Llp
W.r. Grace & Co.,-Conn.
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