Fatty acid methyl esters (FAME) are a type of fatty acid ester that are derived by transesterification of fats with methanol. The molecules in biodiesel are primarily FAME, usually obtained from vegetable oils by transesterification. They are used to produce detergents and biodiesel.[1] FAME are typically produced by an alkali-catalyzed reaction between fats and methanol in the presence of base such as sodium hydroxide, sodium methoxide[2] or potassium hydroxide. One reason for using FAME (fatty acid methyl esters) in biodiesel production, rather than free fatty acids, is to mitigate the potential corrosion they can cause to metals of engines, production facilities, and related infrastructure. While free fatty acids are only mildly acidic, over time they can lead to cumulative corrosion. In contrast, their esters, such as FAME, are less corrosive and therefore preferred for biodiesel production. As an improved quality, FAMEs also usually have about 12-15 units higher cetane number than their unesterified counterparts.[3]
^Anneken, David J.; Both, Sabine; Christoph, Ralf; Fieg, Georg; Steinberner, Udo; Westfechtel, Alfred (2006). "Fatty Acids". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a10_245.pub2. ISBN 9783527306732. OCLC 910197915.
^Vyas, Amish P.; Verma, Jaswant L.; Subrahmanyam, N. (2010). "A review on FAME production processes". Fuel. 89 (1): 1–9. doi:10.1016/j.fuel.2009.08.014. ISSN 0016-2361.
^Schobert, Harold H. (2013). Chemistry of Fossil Fuels and Biofuels. Cambridge, NY: Cambridge University Press. pp. 62–64. doi:10.1017/CBO9780511844188. ISBN 9780511844188. OCLC 823724682.
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countries. Based on 98/70/EG it allows the blending of up to 7% fattyacidmethylester biodiesel with 'conventional' diesel - a 7:93 mix. The EN 590 had...
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groups, or H in the case of esters of formic acid. Glycerides, which are fattyacidesters of glycerol, are important esters in biology, being one of the...
18:2 cis-9,12. A linoleate is a salt or ester of this acid. Linoleic acid is a polyunsaturated, omega-6 fattyacid. It is a colorless liquid that is virtually...
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