Accession Number:

AD0739540

Title:

The Isolation and Determination of Aromatics in Gasoline by Gas Chromatography.

Descriptive Note:

Final rept.,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TEX ARMY FUELS AND LUBRICANTS RESEARCH LAB

Personal Author(s):

Report Date:

1972-04-01

Pagination or Media Count:

20.0

Abstract:

The conditions under which N,N-bis2-cyanoethyl formamide CEF can be used as a liquid phase for the gas chromatographic separation of aromatics from the other components of motor gasolines having final boiling points no greater than 486F have been determined. A multiple-oven gas chromatographic system employing an isothermal CEF column, appropriate valving, a liquid sampling valve, and a temperature-programmed Dexsil 300 column has been used to provide analyses of the aromatic and the saturate-olefin fractions of gasolines. Highly precise volumetric analyses are made of the benzene, toluene, ethylbenzene, mp-xylene, o-xylene, isopropylbenzene, and C9aromatics using a direct calibration method. Procedures are also provided for the determination of the boiling-point distribution of both the aromatic fraction and the saturate-olefin fraction of the gasolines. Provisions for extending the procedure to higher boiling-point materials are discussed. Author

Subject Categories:

  • Polymer Chemistry
  • Fuels

Distribution Statement:

APPROVED FOR PUBLIC RELEASE