Comparison of cetane index with biodiesel cetane index for fatty acid
methyl esters present in six seed oils
Abstract
Abstract This letter compares cetane index (CI) with biodiesel cetane
index (BCI) of total fatty acid methyl esters (FAME) present in six seed
oils. BCI of these FAME compositions estimated from its predicted and
experimental densities is within the range of measured derived cetane
numbers (DCN) in comparison to CI. Predicted and experimental densities
of FAME compositions have a linear relationship with BCI compared to the
reported plot of a single FAME density with cetane numbers. In
conclusion, BCI estimated from FAME compositions of several lipid
sources is a credible method to select fewer samples for measuring
derived cetane numbers.