Method for measuring content of dialkene in C10-C13 positive formation hydrocarbon through spectrum of infrared light

An infrared spectrometer C 10 ~ C 13 n-method diene content of hydrocarbons, including the selection of a representative C 10 ~ C 13 n-hydrocarbon sample, the other olefin content determined by standard methods, and then determined for each sample corresponding to long-wave infrared or near-infrared spectrum, the infrared spectrum selection 920 ~ 890cm -1 and 1000 ~ 980cm -1 , 800 ~ 1100cm -1 or long-wave near-infrared spectrum of 6000 ~ 6300cm -1 the value of the sample in response to the characteristic spectral region a standard method of measuring the content of diene or associated correction equation established model feature spectral region. Second olefin content then by correcting equation or model of an unknown sample by infrared spectrum. This method is suitable for C 10 ~ C 13 n-Determination of hydrocarbon diolefin content analysis rapid, accurate, easy to operate.