Patent ID: 7069838

Claim:
A catalytic converter designed to be integrated into a food-cooking appliance, the food-cooking appliance comprising a deep fryer, and to act, during a cooking cycle in a closed atmosphere and without oxygen being admitted from the outside, to treat the odors in the cooking fumes before the fumes are discharged to the outside, said converter comprising a basic substrate ( 30 ) provided with perforations ( 31 ) for passing the cooking fumes to be treated, said substrate ( 30 ) being coated with an intermediate layer ( 32 ) having a large surface area, said intermediate layer ( 32 ) provided with a surface component ( 33 ) formed of an inorganic solution based on precious metals so as to form the catalytic active layer of said converter, said intermediate layer ( 32 ) comprising alumina and cerine so as to form said intermediate layer ( 32 ) with a surface area of not less than 150 square meters per gram (m 2 /g), the amount of alumina/cerine added to the basic substrate ( 30 ) lying in the range 30 g/m 2 to 35 g/m 2 , including 15 g/m 2 of cerine to 20 g/m 2 of cerine.