A new non-linear calculation method of isomerisation gasoline research octane number based on gas chromatographic data

A new simple no-linear calculation method of isomerisation gasoline Research Octane Number (RON) is presented. The calculation method effectively utilizes the compositional data from high-resolution capillary GC analysis, and the measured pure and blending RON values of various HCs, which are widely published. The method, which is a simple non-linear method, utilizes calculable weighting factors, which are specific for each gasoline blend, and showed an excellent agreement with the RON values of various refinery isomerates samples as they measured in a standard CFR engine.