Exhaust gas catalyst comprising rhodium, zirconia and rare...

Details Exhaust gas catalyst comprising rhodium, zirconia and rare... Exhaust gas catalyst comprising rhodium, zirconia and rare...

B - Operations, Transporting

01

J

B01J 23/63 (2006.01) B01D 53/94 (2006.01)

Patent

CA 2335812

A catalyst comprising rhodium on a support, the support comprising 52-95 % zirconia and 5-48 % rare earth oxide, based on the total weight of (a) and (b), the concentration of the rhodium on the support being 0.035-0.35 % based on the total weight of the rhodium and the support, and the catalyst containing 1.2-4.0 g per in3 (g per 16.4 cm3) in total of (a) and (b).

L'invention se rapporte à un catalyseur comportant du rhodium sur un support qui contient (a) 52 à 95 % de zircone et (b) 5 à 48 % d'oxyde des terres rares, sur la base du poids total de (a) et (b), la concentration en rhodium sur le support étant comprise entre 0,035 et 0,35 % du poids total du rhodium et du support, et le catalyseur contenant 1,2 à 4,0 g par pouce cube (g par 16,4 cm<3>) du total de (a) et (b).

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