CERAMIC CATALYST BODY AND CATALYST REGENERATION METHOD

摘要

PROBLEM TO BE SOLVED: To enhance the poisoning resistance of a catalyst body using a ceramic carrier capable of directly carrying a catalyst by preventing the poisoning of the catalyst caused by a poisoning component in exhaust gas or regenerating the poisoned catalyst. SOLUTION: The ceramic catalyst body is obtained by making the ceramic carrier formed so as to directly carry the catalyst by substituting a part of the constituent elements of cordierite directly carry a main catalyst component and a catalyst component and a trap layer for collecting sulfur being a catalyst poisoning component in exhaust gas is provided to the catalyst body on the upstream side thereof. Since sulfur contained in the exhaust gas can be collected by the trap layer, the catalyst poisoning component is excluded from gas flowing in the catalyst body to prevent the poisoning of the catalyst.