Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6671628 | The Journal of Supercritical Fluids | 2011 | 6 Pages |
Abstract
ⶠHigh conversions of castor oil to ethyl esters by supercritical ethanolysis were achieved at lower temperatures than with conventional oils. ⶠDue to the high content of a hydroxy-fatty acid, castor oil could suffer several side reactions during the process. ⶠA maximum ester content of 75%, accompanied by 10 wt% degradation, was achieved at 573 K and 20 MPa. ⶠWater favorably affected the efficiency of the process, unlike on conventional alkali-catalyzed process.
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Authors
Ignacio Vieitez, MarÃa J. Pardo, Camila da Silva, Cristiane Bertoldi, Fernanda de Castilhos, J. Vladimir Oliveira, Maria A. Grompone, Iván Jachmanián,