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
Descriptors:
Subject Categories:
- Polymer Chemistry
- Fuels