Optimization of Zero-PGM Metal Loading on Metallic Substrates
First Claim
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1. A method for optimizing a catalytic system, comprising:
- providing a catalyst system, comprising;
a substrate;
a washcoat suitable for deposition on the substrate, comprising at least one first oxide solid selected from the group consisting of a first carrier material oxide, at least one first catalyst, and a mixture thereof; and
an overcoat suitable for deposition on the substrate, comprising at least one second oxide solid selected from the group consisting of a second carrier material oxide, at least one second catalyst, and a mixture thereof;
adjusting an amount of metal in the at least one first catalyst whereby the T50 temperatures for HC and CO are substantially equal.
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Abstract
The present disclosure refers to a plurality of process employed for optimization of Zero-PGM metal loading in Washcoat and Overcoat on metallic substrates. According to an embodiment a substantial increase in conversion of HC and CO may be achieved by optimizing the metal loading of the catalyst. According to another embodiment, the present disclosure may provide solutions to determine the optimum metal loading in washcoat for minimizing washcoat adhesion loss. As a result, may increase the conversion of HC and CO from discharge of exhaust gases from internal combustion engines, optimizing performance of Zero-PGM catalyst systems.
15 Citations
17 Claims
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1. A method for optimizing a catalytic system, comprising:
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providing a catalyst system, comprising; a substrate; a washcoat suitable for deposition on the substrate, comprising at least one first oxide solid selected from the group consisting of a first carrier material oxide, at least one first catalyst, and a mixture thereof; and an overcoat suitable for deposition on the substrate, comprising at least one second oxide solid selected from the group consisting of a second carrier material oxide, at least one second catalyst, and a mixture thereof; adjusting an amount of metal in the at least one first catalyst whereby the T50 temperatures for HC and CO are substantially equal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for optimizing a catalytic system, comprising:
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providing a catalyst system, comprising; a substrate; a washcoat suitable for deposition on the substrate, comprising at least one first oxide solid selected from the group consisting of a first carrier material oxide, at least one first catalyst, and a mixture thereof; and an overcoat suitable for deposition on the substrate, comprising at least one second oxide solid selected from the group consisting of a second carrier material oxide, at least one second catalyst, and a mixture thereof; adjusting an amount of metal in the at least one first catalyst in accordance with the union of the T50 temperature for HC and washcoat adhesion loss. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification