High Luminosity Burners (Oxyfuel Furnaces)

Oxyfuel burners have low flame luminosity and are prone to increased NOx emissions in case of air leakage due to high flame temperature. High luminosity burner aims to deal with these shortcomings Worrell et al., 2008. p.66). The high-luminosity, low-NOx burner combines a preheating zone with two combustion zones. First, a small fraction of the natural gas is burned. The products of this combustion are mixed with the main supply of natural gas, resulting in hydrocarbon soot precursors generated in an oxygen-free heating environment. The preheated natural gas then enters the first, fuel- rich combustion zone in which soot forms in the flame. The majority of the combustion, however, occurs in the second, fuel-lean combustion zone. The burning soot particles create a highly luminous flame that is more thermally efficient and cooler than a typical oxyfuel flame (US DOE, 2007). Lower flame temperature leads to reduced emissions and extends furnace life (Worrell et al., 2008. p.66).

Development Status Products

High Luminosity Burners (Oxyfuel Furnaces)Costs & Benefits

Parent Process: Melting and Refining
Energy Savings Potential

Thermal efficiency increases by approximately 4% (Worrell et al., 2008. p.66).

CO2 Emission Reduction Potential

High Luminosity Burners (Oxyfuel Furnaces)Schematic

High Luminosity Burners (Oxyfuel Furnaces) Publications

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