Sulfamic acid: An efficient acid catalyst for esterification of FFA

Esterification is one of the most fundamental reactions in organic chemistry. It has a great application in both laboratory work and industrial processes on account of its versatility. In this study sulfamic acid (H2NSO3H, SA) was used as an efficient catalyst for the synthesis of fatty acid methyl...

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Bibliographic Details
Published in:Fuel (Guildford) 2012-07, Vol.97, p.884-886
Main Authors: Montes D’Oca, Marcelo G., Soares, Rafael Marinho, de Moura, Renata Rodrigues, de Freitas Granjão, Vinícius
Format: Article
Language:English
Subjects:
Applied sciences
Biodiesel
Catalysts
Energy
Energy. Thermal use of fuels
Esterification
Esters
Ethanol
Ethyl alcohol
Ethyl ricinoleate
Exact sciences and technology
FAAEs
Fatty acids
Fuels
Green methodology
Methyl alcohol
Synthesis
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Summary:Esterification is one of the most fundamental reactions in organic chemistry. It has a great application in both laboratory work and industrial processes on account of its versatility. In this study sulfamic acid (H2NSO3H, SA) was used as an efficient catalyst for the synthesis of fatty acid methyl and ethyl esters (FAEEs and FAMEs) under different conditions (fatty acid type, molar ratio, temperature, and % catalyst). Esterification using methanol and ethanol resulted in a higher fatty acid alkyl ester yield. The best result was obtained with ethanol, which yielded 91.2–97.7% FAEEs. However, in the same conditions the FAMEs were obtained with lower yields. These results demonstrate that this green methodology has high potential for the synthesis of fatty acid alkyl esters.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2012.02.038