On-line detection of gasoline octane number is very important for the production of high quality gasoline

and is essential for the reconciliation process.Compared with the deficiency of the traditional detection methods

a new octane number detection method based on Raman technology was proposed.The system consisted of on-line detection

data pre-processing

and calculate model of gasoline octane number.The results showed that the system detected the octane number of gasoline accurately

and displayed the Raman spectra obtained by the detector.