Determination of Aromaticity of Fuels and Lubricant Basestocks by Ultraviolet Spectroscopy.

Abstract

A rapid and inexpensive ultraviolet spectroscopic method for determining the aromaticity of turbine and diesel fuels and of lubricant basestocks has been developed. The method employs fixed cells of 0.010, 0.10, and 1.00 cm pathlength in which a sample spectrum is obtained in the 190 to 350nm region. Absorbance values at several wavelengths and simple matrix calculations yield weight percent ring carbon in substituted benzenes, napthalenes, and phenanthrenes/anthracenes. The precision and accuracy of the method are good for both standards and fuel blends. The method is currently in use for correlation work in both turbine combustors and diesel engines. A large number of virgin and re-refined lubricant basestocks have been analyzed and the results compared to those from other methods. The UV data are more detailed and are believed to be more reliable and accurate. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1980
Accession Number
ADA086654

Entities

People

  • Frank M. Newman
  • Marvin K. Greenberg

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Spectra
  • Aromatic Compounds
  • Aromatic Hydrocarbons
  • Chemical Synthesis
  • Chemistry
  • Cyclic Hydrocarbons
  • Diesel Fuels
  • Fuels
  • Hydrocarbon Fuels
  • Hydrocarbons
  • Lubricants
  • Materials
  • Refraction
  • Refractive Index
  • Spectra
  • Spectroscopy
  • Standards

Readers

  • Petroleum Engineering
  • Regression Analysis.
  • Spectroscopy.