SYMPOSIA PAPER Published: 01 January 1958

Determination of the Paraffin, Monocyclic, and Dicyclic Naphthene Contents of a Middle East Gas Oil by Selective Adsorption


The effectiveness of selective adsorption on silica gel in separating the naphthene plus paraffin and the aromatic components of gasoline and kerosine fractions is well known. Numerous workers have employed the technique, outstanding among them being Mair and Rossini and their colleagues at the National Bureau of Standards, and more recently at the Carnegie Institute, Pittsburgh, Pa. In one communication by these investigators (1), the examination of a 230 to 300 C cut material from Ponca Crude was described, wherein the naphthene plus paraffin material first obtained was reprocessed over silica gel to yield an adsorptogram indicating a fair measure of separation between the naphthenes and the paraffins. In the present work a similar reprocessing technique has been used in the examination of a series of Middle East gas oil fractions in the boiling range 330 to 410 C.

Author Information

Rampton, H.
British Petroleum Co., Ltd., London, England
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Developed by Committee: D02
Pages: 49–58
DOI: 10.1520/STP46916S
ISBN-EB: 978-0-8031-6943-2
ISBN-13: 978-0-8031-6556-4