Fuel Modification for Abatement of Aircraft Turbine Engine Oxides of Nitrogen Emissions
Final rept. 26 Apr 1971-31 May 1972
ESSO RESEARCH AND ENGINEERING CO LINDEN NJ GOVERNMENT RESEARCH LAB
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The report describes a broad experimental program that was undertaken to assess the feasibility of reducing NOx from aircraft gas turbine engines by fuel modification. The Esso High Pressure Cannular Combustor was used to simulate the characteristic emissions of gas turbines at full power operation. Over 70 fuel modifications were tested using Jet A as the base fuel. Soluble compounds of cobalt, iron, magnesium, and copper reduce NOx by as much as 30 when added to the fuel at a treat rate of up to 0.5 w. None of the investigated additives were fully acceptable because of the relatively low NOx reduction that was obtained even with high additive treat rates. A simple expression was derived which is useful in estimating NO levels in gas turbine combustors when equilibrium NOx concentrations and temperature are known.
- Jet and Gas Turbine Engines
- Air Pollution and Control