Crucial properties can be measured in less than one minute by NIR on-line.
In petrochemistry, monitoring of the blending process by NIR has proven huge economical savings, since crucial properties such as water content, density, viscosity, additive content, and hydroxyl number can be measured in less than one minute.
Gasoline parameters measured with NIR cover research octane (RON, ASTM D 2699), motor octane (MON, ASTM D 2700), and road octane number (RdON), and volume percentage or even mole percent of individual components (paraffins, isoparaffins, aromatics, naphthenes, and olefins; PIANO). Common diesel parameters measured with NIR include specific gravity, viscosity, flash point, cold filter plugging point (CFPP), pour point, and cloud point.
