Hydrocarbons in the gasoline fraction of seven representative crudes, including all the distillate to 102 degrees C and the aromatics to 160 degrees C

This paper is the second report of an investigation on the analysis of the gasoline fraction of representative crude petroleums by the API Research Project 6 at the National Bureau of Standards. The samples for analysis were selected so as to cover the largest possible range in composition; included one high in aromatics, one high in isoparaffins, one high in normal paraffins, and one high in naphthenes (cycloparaffins); and came from the following fields: Ponca, Okla.; East Texas; Bradford, Pa. ; Greendale-Kawkawlin, Mich.; Winkler, Tex.; Midway, Calif.; Conroe, Tex. The fractionating processes of adsorption and distillation were used in the analysis.