Literature Review of Cetane Number and Its Correlations.

Abstract

This review covers the standard method of determining cetane number (engine tests, ASTM D613) and alternative methods, which comprise 1 engine tests method and 33 cetane indices (predictive equations of cetane number). Of the alternative methods, emphasis is given to those which appear or had appeared promising as good predictors of cetane number. The various cetane indices are categorized according to the type of parameters employed viz, physical properties (e.g., the calculated cetane index, ASTM D976, an approved alternative method to ASTM D613), chemical composition/structure, and physico-chemical properties (e.g., spontaneous ignition tests). Of the physical properties, the combination of distillation temperature(s) and density appear to afford good correlations between cetane index and cetane number. Furthermore, these two parameters continue to feature in the replacement equations of D976. For indices based on a single property, aniline point gives the best prediction. Keywords: Cetane, Indices, Correlations, Distillation, Temperatures, Density, Aniline Point, Physical Properties.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1987
Accession Number
ADA181753

Entities

People

  • Seetar G. Pande

Tags

DTIC Thesaurus Topics

  • Alkanes
  • Alkenes
  • Burning Rate
  • Chemical Properties
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Combustion
  • Cyclic Hydrocarbons
  • Databases
  • Diesel Fuels
  • Hydrocarbon Fuels
  • Ignition Lag
  • Materials Processing
  • Petroleum
  • Physical Properties
  • Test Methods

Readers

  • Petroleum Engineering
  • Psychometric Testing or Psychological Assessment.