Method and apparatus for reducing pollutants

  • US 6,253,544 B1
  • Filed: 10/07/1999
  • Issued: 07/03/2001
  • Est. Priority Date: 05/18/1994
  • Status: Expired due to Fees
First Claim
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1. A method for improving the performance of a catalytic converter in a gas flow stream produced from the combustion of fuel, the method comprising:

  • positioning at least a portion of a device, which generates ozone in ambient air, into the gas flow stream;

    providing a high frequency current to the device;

    exposing at least a portion of the gas flow stream to the effects of the device;

    positioning the catalytic converter such that at least a portion of the catalytically active material is downstream of the device; and

    passing at least a portion of the gas flow stream exposed to the effects of the device through at least a portion of the catalytic converter, thereby improving the catalytic converter'"'"'s reduction of at least one pollutant selected from the group consisting of products of incomplete combustion of fuel and oxides of nitrogen from a first concentration to a second lower concentration.

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