Comparative Testing of Petroleum Surrogate Fuels With Coal-Derived Liquids in a Combustion Turbine Burner

Tests have been made in a combustion turbine burner using six petroleum-derived surrogate (PDS) fuels simulating six coal-derived liquid (DCL) fuels tested earlier. The purpose being to examine their suitability for use in place of scarce CDL fuels for combustor development. The PDS and DCL fuels were matched in terms of aromaticity and fuel bound nitrogen although differences in viscosity, distillation range and constituent species existed. In three cases, the low fuel bound nitrogen present in the PDS fuels was made equal to their coal liquid counterparts via the addition of quinoline. All six PDS fuels were evaluated on a 0.14-m-dia combustor while one of the surrogate fuels was evaluated on a 0.3-m-dia Westinghouse commercial combustor.