Development of a supercritical fluid chromatographic method for determination of aromatics in heating oils and diesel fuels
A new analytical method using supercritical fluid chromatography with flame ionization detection was developed for determining the total aromatic content of middle distillates. Separation between saturates and aromatics is accomplished on a packed silica column with supercritical CO/sub 2/ as the carrier fluid. The method is simple, fast and applicable to heavy distillates with final boiling points up to 450/degrees/C and is not restricted by sample color. The similar response of the FID to saturates and aromatics collected from separation of actual samples indicates that calibration is not required. Aromatic concentrations in a number of middle distillates were also determined by proton nuclear magnetic resonance and the ASTM standard fluorescent indicator adsorption methods. Data indicate good correlations among the methods. Because of its simplicity and speed, the SFC method would be suitable for applications in petroleum refinery control laboratories.
- Research Organization:
- Energy, Mines and Resources Canada, Ottawa, Ontario
- OSTI ID:
- 6020700
- Journal Information:
- Energy Fuel; (United States), Vol. 3:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AROMATICS
EMISSION SPECTROSCOPY
SUPERCRITICAL FLUID CHROMATOGRAPHY
DIESEL FUELS
QUANTITATIVE CHEMICAL ANALYSIS
HEATING OILS
EXPERIMENTAL DATA
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
FUEL OILS
FUELS
INFORMATION
LIQUID FUELS
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SEPARATION PROCESSES
SPECTROSCOPY
023000* - Petroleum- Properties & Composition
400105 - Separation Procedures
400102 - Chemical & Spectral Procedures