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Low boiling point organic amine-catalyzed transesterification of cottonseed oil to biodiesel with trace amount of KOH as co-catalyst
- Source :
-
Fuel . Dec2010, Vol. 89 Issue 12, p3871-3875. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: The effect of addition of trace amount of KOH as co-catalyst on low boiling point organic amine-catalyzed transesterification for biodiesel production was investigated. Three different organic amines, tri-ethylamine, di-ethylamine and tert-butylamine, were used as catalysts, and the maximum amount of KOH that could be added to these organic amine-catalyzed systems was 367.1mg/kg oil. Under such circumstance, KOH could be left in the resultant biodiesel and no washing was needed to remove it as the concentration of K+ in the biodiesel met EN 14214 standards. Addition of trace amount of co-catalyst KOH with an amount of 367.1mg/kg oil resulted in the organic amine-catalyzed transesterification under milder reaction conditions than those without addition of KOH to achieve >90% yield of methyl ester. Furthermore, side reactions that occurred in the pure organic amine-catalyzed systems could not be detected after addition of trace amount of KOH, as evidenced by the NMR results. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00162361
- Volume :
- 89
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Fuel
- Publication Type :
- Academic Journal
- Accession number :
- 53715833
- Full Text :
- https://doi.org/10.1016/j.fuel.2010.07.003