On-line octane-number analyser for reforming unit effluents. Principle of the analyser and test of a prototype

An on-line automatic explosion-proof process octane-number analyser was developed. The principle is based on on-line capillary gas chromatographic analysis of the sample. A computer program performs the identification and the quantification of the components and calculates the octane numbers and other physical properties. The process analyser consists of laboratory equipment placed in an explosion-proof shelter. A prototype of the analyser was tested on a pilot plant under industrial conditions. It was shown that the fully automated analyser is reliable and reproducible.