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Close coupled catalyst

  • US 20010036432A1
  • Filed: 05/04/2001
  • Published: 11/01/2001
  • Est. Priority Date: 12/06/1994
  • Status: Abandoned Application
First Claim
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1. An article comprising:

  • a gasoline engine having an exhaust outlet; and

    a close coupled catalyst in communication with the exhaust outlet, the close coupled catalyst comprising a close coupled catalyst composition having substantially no oxygen storage components, the catalyst composition comprising;

    a support;

    a palladium component;

    optionally, at least one alkaline metal oxide selected from the group consisting of strontium oxide, calcium oxide and barium oxide;

    optionally, at least one platinum group metal component selected from the group consisting of platinum, rhodium, ruthenium and iridium components;

    optionally, at least one rare earth oxide selected from the group consisting of neodymium oxide and lanthanum oxide; and

    optionally, a second zirconium oxide.

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