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5341250 
Journal Article 
Industrial applications of near infra-red spectroscopy: Quality evaluation of naphtha feed for olefin production 
Pandey, GC; Kumar, A; Garg, RK 
2001 
1 
Indian Journal of Chemistry. Section A
ISSN: 0376-4710
EISSN: 0975-0975 
40 
3 
327-330 
English 
WOS:000167657400022 
In an attempt to develop an alternative, fast, simple and direct method for the measurements of various properties of naphtha, we report a method based on near infra-red (NIR) spectroscopy. The required parameters for quality evaluation of such feed include mainly aromatics, naphthenes (C6-, i.e., components having carbon number 6 and below and C7+, i.e., those with carbon number 7 and above), paraffins (C6- and C7+) and methylcyclohexane. The results obtained by the NIR method show an excellent agreement with the currently accepted standard gas chromatography (GC) method.