A Partial Conversion Of A Gas-Air Fired Television Furnace To Oxy-Fuel Combustion

Oxy-fuel became an attractive alternative to extend the furnace life of a television furnace which was experiencing severe plugging and collapsing of the checkers. The on-the-fly conversion was made by inserting oxy-fuel burners directly in the breastwalls and replacing the energy in the affected ports with oxy-fuel combustion. The burners used for the conversion were the Praxair L-burners. An additional advantage to the conversion was the substantial reduction in nitrogen oxide (NOx). The NOx reduction was accomplished with only a portion of the furnace being fired on oxy-fuel burners. This paper describes the conversion and reviews the results of the conversion.