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Method of reducing NOx emissions using a fluid-cooled injector

  • US 20020001554A1
  • Filed: 07/09/2001
  • Published: 01/03/2002
  • Est. Priority Date: 10/01/1998
  • Status: Abandoned Application
First Claim
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1. A method of reducing emissions of oxides of nitrogen from a combustion process using a temperature sensitive liquid reagent injected into a stream of exhaust gases from said combustion process and passing said exhaust gases and said reagent through a catalytic reactor which reduces the oxides of nitrogen in the presence of the reagent, said method comprising the steps of:

  • providing an injector having an orifice for atomizing said liquid reagent;

    positioning a portion of said injector having said orifice within said stream of exhaust gases;

    cooling said injector by continuously circulating said reagent therethrough, thereby keeping both said injector and said reagent within said injector below a critical temperature at which said reagent will solidify; and

    injecting a portion of said reagent into said exhaust stream upstream of said reactor.

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