Purification catalyst for exhaust gas, production method...

Details Purification catalyst for exhaust gas, production method... Purification catalyst for exhaust gas, production method...

B - Operations, Transporting

01

J

B01J 23/56 (2006.01) B01D 53/86 (2006.01) B01J 37/03 (2006.01)

Patent

CA 2534278

A purification catalyst for exhaust gas which exhibits satisfactory performance even at a low temperature operation of starting or idling of engine (not more than 400°C), and a production method therefor are provided. The catalyst comprises an aluminum oxide supporting Pd, and the aluminum oxide is LnAlO3 (Ln: rare-earth metal).

L'invention concerne un catalyseur destiné à la clarification de gaz d'échappement contenant un oxyde d'aluminium et du palladium situé dans celui-ci, caractérisé en ce que l'oxyde d'aluminium est un LnAlO3 (Ln étant un métal du groupe des terres rares) ; et un procédé de production dudit catalyseur. Ce catalyseur de clarification de gaz d'échappement présente une performance de clarification satisfaisante également en fonctionnement à basse température pendant la marche au ralenti (à 400 DEG C ou moins).

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