Page 177 - Biofuels Refining and Performance

160 Chapter Five

that isopropyl esters have better fuel properties than methyl esters.
The major disadvantage is the higher price of isopropanol in compari-
son to methanol, besides modifications needed for the transesterifica-
tion reaction. Similar observations likely hold for the fatty acid moiety.
It may be possible in the future to improve the properties of biodiesel
by means of genetic engineering of the parent oils, which could even-
tually lead to a fuel enriched with (a) certain fatty acid(s), possibly oleic
acid, that exhibits a combination of improved fuel properties.

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