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Title: Physicochemical characterization and applications of naphtha
Authors: Pandey, S C
Ralli, D K
Saxena, A K
Alamkhan, W K
Keywords: Physicochemical characterization
Hydrogen dependent processes
Issue Date: Mar-2004
Publisher: CSIR
IPC CodeInt Cl.7: C 10 G 45/08
Abstract:  The present work aims at comprehensive evaluation of naphtha quality at physicochemical levels along with its applications. The study monitors the changes in the quality parameters by drawing samples from the storage tanks at Uran plant as well as at Indian Oil Tanking Limited (IOTL) terminal. Group characteristic assigns this LAN group1 category. It is observed that this LAN possesses high paraffin, low aromatic content, no olefins, and metallic constituents in a fraction of a ppm. The presence of metals in minute concentrations may not cause significant corrosion problems, catalytic poisoning, ash formation and any adverse impact on the quality of the product. Sulphur content is as low as 22ppm. Very small quantity of residue left on evaporation (4.18 mg/100mL) indicates lesser coke forming and carbon depositing propensity. Preponderance of paraffins renders faint odor to the product. Water whiteness of naphtha results owing to low concentration of aromatics. Saybolt colour indices towards the brightest end of the scale (+28 to +30) show high degree of freedom from contamination and cleanness of the product. High heating value, and C/H ratio indicate its hydrogen richness hence, it becomes suitable for many hydrogen dependent processes. Average value of Reid Vapor Pressure (at 37.8oC) at the level of 10.2 psia makes it safer for handling, storage and processing.
Page(s): 276-282
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.63(03) [March 2004]

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