Literature Review of Cetane Number and Its Correlations.
Progress rept. Jul 86-Mar 87,
GEO-CENTERS INC NEWTON CENTRE MA
Pagination or Media Count:
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 compositionstructure, and physico-chemical properties e.g., spontaneous ignition tests. Of the physical properties, the combination of distillation temperatures 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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