SEDL / STP / STP577-EB / STP35522S

Application of Gas Chromatographic Distillation to Motor Gasoline Blending

Bird, WL
Staff engineersenior staff coordinator, Petroleum Products LaboratoryBaton Rouge Refinery, Exxon Company, U.S.A., Baton Rouge, La.

Kimball, JL
Staff engineersenior staff coordinator, Petroleum Products LaboratoryBaton Rouge Refinery, Exxon Company, U.S.A., Baton Rouge, La.

Pages: 14    Published: Jan 1975

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Abstract

Mathematical models have been developed and effectively applied to daily refinery motor gasoline blending operations that allow the Reid vapor pressure (RVP) and the ASTM distillation properties of the gasoline to be predicted from a low-resolution gas chromatographic (GC) analysis of the gasoline. Analysis time is about 15 min per sample, less than half the time required for the two conventional ASTM test procedures (RVP and distillation) that are replaced by a single GC analysis. This paper outlines the development of these models, discusses their performance, and reviews the practical applications already implemented.